Dr. Kärger YIN, KIT

Prof. Dr.-Ing. Luise Kärger

  • Institute of Vehicle System Technology (FAST),
    Lightweight Engineering
    Rintheimer Querallee 2, Bld. 70.04.
    76131 Karlsruhe
    Germany

Short Biography

since 07/2022

Professor for Digitalization in Lightweight Design (Heisenberg Professorship) and Head of the Division Lightweight Engineering at the Institute of Vehicle Systems Technology (FAST) at the Karlsruhe Institute of Technology (KIT)

01/2015 - 06/2022

Deputy head of the Department of Lightweight Technology (LBT) at the Institute of Vehicle System Technology (FAST) at KIT

07/2014 - 12/2022

Head of the Young Investigator Group (YIG) „Green Mobility“, funded by the Vector Foundation

02/2012 – 12/2014

Scientific assistant and group leader „Continuous Fibre-Reinforced Plastics“ at KIT FAST-LBT

10/2002 - 02/2012

Scientific assistant, German Aerospace Center (DLR), Institute of Composite Structures and Adaptive Systems (FA), Department of Structural Mechanics, Braunschweig, Germany

2007

Doctorate in Engineering, Department of Mechanical Engineering, TU Braunschweig, Doctoral thesis: „Efficient simulation of impact damage in composite sandwich structures“

2007

Visiting Scientist at the Cooperative Research Centre for Advanced Composite Structures (CRC-ACS) in Melbourne, Australia

1999 – 2000

Imperial College International Diploma, Civil Engineering, Imperial College London

1996 – 2002

Civil Engineering Diploma, Technical University of Dresden

Research focus

  • Weight-optimized vehicle structures through tailor-made high-performance fiber composites

  • Process and structural simulation of continuously and discontinuously reinforced fiber composites

  • Development of continuous CAE chains for continuous and long fiber composites

  • Optimization strategies for fiber composite processes and the resulting load-bearing capacity

     

Lectures and Courses

 

Modeling and Simulation (WS)

 

Publications


Journal Articles
2025
Evaluation of a decomposition-based interpolation method for fourth-order fiber-orientation tensors: An eigensystem approach
Bauer, J. K.; Krauß, C.; Blarr, J.; Kinon, P. L.; Kärger, L.; Böhlke, T.
2025. Mathematics and Mechanics of Solids, 30 (3), 641–678. doi:10.1177/10812865241241002
Efficient Approximation of Varying Fiber Orientation States in Injection Molded Parts Under Consideration of Multiple Manufacturing Uncertainties
Wittemann, F.; Krauß, C.; Kärger, L.
2025. Applied Composite Materials, 32 (1), 149–172. doi:10.1007/s10443-024-10268-3
Evaluation of mechanical properties characterization of additively manufactured components
Frölich, F.; Bechtloff, L.; Scheuring, B. M.; Heuer, A. L.; Wittemann, F.; Kärger, L.; Liebig, W. V.
2025. Progress in Additive Manufacturing, 10 (2), 1217–1229. doi:10.1007/s40964-024-00700-2
Low velocity impact resistance of hybrid CFRP ‐elastomer‐metal laminates: Influence of stacking sequence and impact conditions on damage mechanisms
Li, Z.; Jackstadt, A.; Zhang, J.; Liebig, W. V.; Kärger, L.
2025. Polymer Composites, 46 (1), 817–831. doi:10.1002/pc.29028
2024
Experimental analysis of the forming behavior of uni- and bidirectional non-crimp fabrics for different geometries
Schäfer, B.; Zheng, R.; Colmars, J.; Platzer, A.; Naouar, N.; Boisse, P.; Kärger, L.
2024. Composites Part B: Engineering, 287, 111765. doi:10.1016/j.compositesb.2024.111765
A hyperelastic approach for modeling the membrane behavior in finite element forming simulation of unidirectional non-crimp fabrics (UD-NCF)
Schäfer, B.; Dörr, D.; Zheng, R.; Naouar, N.; Kärger, L.
2024. Composites Part A: Applied Science and Manufacturing, 185, Art.-Nr.: 108359. doi:10.1016/j.compositesa.2024.108359
Interpolation methods for orthotropic fourth-order fiber orientation tensors in context of virtual composites manufacturing
Mitsch, J.; Krauß, C.; Kärger, L.
2024. Computer Methods in Applied Mechanics and Engineering, 430, Art.-Nr.: 117215. doi:10.1016/j.cma.2024.117215
Physics-informed MeshGraphNets (PI-MGNs): Neural finite element solvers for non-stationary and nonlinear simulations on arbitrary meshes
Würth, T.; Freymuth, N.; Zimmerling, C.; Neumann, G.; Kärger, L.
2024. Computer Methods in Applied Mechanics and Engineering, 429, Artkl.Nr.: 117102. doi:10.1016/j.cma.2024.117102
On the Averaging and Closure of Fiber Orientation Tensors in Virtual Process Chains
Krauß, C.; Bauer, J. K.; Mitsch, J.; Böhlke, T.; Kärger, L.
2024. Journal of Elasticity, 156 (1), 279–306. doi:10.1007/s10659-024-10050-3
pyGCodeDecode: A Python package for time-accurate GCode simulation in material extrusion processes
Knirsch, J.; Frölich, F.; Hof, L.; Wittemann, F.; Kärger, L.
2024. Journal of Open Source Software, 9 (99), Art.-Nr.: 6465. doi:10.21105/joss.06465
Mesoscopic finite element modeling of biaxial non-crimp fabric including representative stitch pattern
Zheng, R.; Naouar, N.; Colmars, J.; Platzer, A.; Schäfer, B.; Morestin, F.; Kärger, L.; Boisse, P.
2024. Composite Structures, 339, 118126. doi:10.1016/j.compstruct.2024.118126
On the influence of low-velocity impact damage on constrained-layer damping in hybrid CFRP-elastomer-metal laminates
Jackstadt, A.; Liebig, W. V.; Weidenmann, K. A.; Kärger, L.
2024. Materials & Design, 241, Article no: 112882. doi:10.1016/j.matdes.2024.112882
How Domain Knowledge can Improve Machine Learning Surrogates for Manufacturing Process Optimization – a Comparative Study
Böhnke, B. H.; Eismont, A.; Zimmerling, C.; Kärger, L.; Böhm, K.
2024. Procedia CIRP, 130, 145–153. doi:10.1016/j.procir.2024.10.069
A submodeling approach for efficient prediction of local temperature profiles in component-scale additive manufacturing
Frölich, F.; Hof, L.; Zimmerling, C.; Wittemann, F.; Kärger, L.
2024. The International Journal of Advanced Manufacturing Technology. doi:10.1007/s00170-024-14913-w
Modeling Approach for Reactive Injection Molding of Polydisperse Suspensions with Recycled Thermoset Composites
Jetty, B.; Wittemann, F.; Kärger, L.
2024. Polymers, 16 (16), Art.-Nr.: 2245. doi:10.3390/polym16162245
Deep convolutional generative adversarial network for generation of computed tomography images of discontinuously carbon fiber reinforced polymer microstructures
Blarr, J.; Klinder, S.; Liebig, W. V.; Inal, K.; Kärger, L.; Weidenmann, K. A.
2024. Scientific Reports, 14 (1), Art.-Nr.: 9641. doi:10.1038/s41598-024-59252-8
Swarm reinforcement learning for adaptive mesh refinement
Freymuth, N.; Dahlinger, P.; Würth, T.; Reisch, S.; Kärger, L.; Neumann, G.
2024. Advances in Neural Information Processing Systems, 36 S
2023
Zeiteffiziente und datenfreie Bauteil- und Prozesssimulation mithilfe von Physics-Informed Neural Networks
Würth, T.; Prietze, A.; Zimmerling, C.; Krauß, C.; Kärger, L.
2023. NAFEMS-Magazin, 68 (4), 39–45
Schnelle Methode zur Approximation von Druck- und Faserorientierungsverteilung infolge prozess- und materialbedingter Streuungen im Spritzguss
Wittemann, F.; Kärger, L.
2023. NAFEMS-Magazin, 68 (4), 22–28
Membrane behavior of uni- and bidirectional non-crimp fabrics in off-axis-tension tests
Schäfer, B.; Zheng, R.; Naouar, N.; Kärger, L.
2023. International Journal of Material Forming, 16 (6), Art.-Nr.: 68. doi:10.1007/s12289-023-01792-x
Physics-informed neural networks for data-free surrogate modelling and engineering optimization – An example from composite manufacturing
Würth, T.; Krauß, C.; Zimmerling, C.; Kärger, L.
2023. Materials & Design, 231, Art.-Nr.: 112034. doi:10.1016/j.matdes.2023.112034
CAE-Simulationskette zur Werkzeug- und Prozessauslegung von Carbonfaser-SMC-Bauteilen
Gorde, S. S.; Krauß, C.; Bartkowiak, M.; Kärger, L.
2023. NAFEMS Online-Magazin, (65), 39–48
A hyperelastic material model considering biaxial coupling of tension–compression and shear for the forming simulation of woven fabrics
Schäfer, F.; Werner, H. O.; Henning, F.; Kärger, L.
2023. Composites Part A: Applied Science and Manufacturing, 165, Art.-Nr.: 107323. doi:10.1016/j.compositesa.2022.107323
A probabilistic virtual process chain to quantify process-induced uncertainties in Sheet Molding Compounds
Meyer, N.; Gajek, S.; Görthofer, J.; Hrymak, A.; Kärger, L.; Henning, F.; Schneider, M.; Böhlke, T.
2023. Composites Part B: Engineering, 249, Art.-Nr.: 110380. doi:10.1016/j.compositesb.2022.110380
2022
Influence of fiber breakage on flow behavior in fiber length- and orientation-dependent injection molding simulations
Wittemann, F.; Kärger, L.; Henning, F.
2022. Journal of Non-Newtonian Fluid Mechanics, 310, 104950. doi:10.1016/j.jnnfm.2022.104950
On the Resin Transfer Molding (RTM) Infiltration of Fiber-Reinforced Composites made by Tailored Fiber Placement
Bittrich, L.; Seuffert, J.; Dietrich, S.; Uhlig, K.; Lisboa, T. de V.; Kärger, L.; Spickenheuer, A.
2022. Polymers, 14 (22), Art.-Nr.: 4873. doi:10.3390/polym14224873
Formability Assessment of Variable Geometries Using Machine Learning - Analysis of the Influence of the Database
Zimmerling, C.; Fengler, B.; Kärger, L.
2022. Key Engineering Materials, 926, 2247–2257. doi:10.4028/p-1o0007
Tensor interpolation in virtual manufacturing chains for fiber reinforced composites
Krauß, C.; Kärger, L.
2022. International Journal of Mechanical Sciences, 226, Article no: 107378. doi:10.1016/j.ijmecsci.2022.107378
Thermal Modeling of Laser Powder Bed Fusion during Printing on Temperature-Unstable Materials Considering Local Sintering
Frölich, F.; Kärger, L.
2022. Key Engineering Materials, 926, 331–340. doi:10.4028/p-uq57va
Experimental and Numerical Analysis of SMC Compression Molding in Confined Regions : A Comparison of Simulation Approaches
Rothenhäusler, F.; Meyer, N.; Wehler, S.; Hohberg, M.; Gude, M.; Henning, F.; Kärger, L.
2022. Journal of composites science, 6 (3), Art.-Nr.: 68. doi:10.3390/jcs6030068
Low-velocity impact behavior of hybrid CFRP-elastomer-metal laminates in comparison with conventional fiber-metal laminates
Li, Z.; Zhang, J.; Jackstadt, A.; Kärger, L.
2022. Composite structures, 287, Art.Nr.: 115340. doi:10.1016/j.compstruct.2022.115340
Analytical modeling and investigation of constrained layer damping in hybrid laminates based on a unified plate formulation
Jackstadt, A.; Liebig, W. V.; Kärger, L.
2022. International journal of mechanical sciences, 216 (216), Art.Nr.: 106964. doi:10.1016/j.ijmecsci.2021.106964
Investigation of the Membrane Behavior of UD-NCF in Macroscopic Forming Simulations
Schäfer, B.; Haas, S.; Boisse, P.; Kärger, L.
2022. Key Engineering Materials, 926, 1413–1422. doi:10.4028/p-2977b4
Towards 3D Process Simulation for In-Situ Hybridization of Fiber-Metal-Laminates (FML)
Poppe, C. T.; Werner, H. O.; Kruse, M.; Chen, H.; Ben Khalifa, N.; Henning, F.; Kärger, L.
2022. Key Engineering Materials, 926, 1399–1412. doi:10.4028/p-cr2tco
Advances in composite forming through 25 years of ESAFORM
Boisse, P.; Akkerman, R.; Carlone, P.; Kärger, L.; Lomov, S. V.; Sherwood, J. A.
2022. International Journal of Material Forming, 15 (3), 39. doi:10.1007/s12289-022-01682-8
Systematic Approach for Finite Element Analysis of Thermoplastic Impregnated 3D Filament Winding Structures—Advancements and Validation
Haas, J.; Aberle, D.; Krüger, A.; Beck, B.; Eyerer, P.; Kärger, L.; Henning, F.
2022. Journal of Composites Science, 6 (3), Art.-Nr.: 98. doi:10.3390/jcs6030098
Hybrid material additive manufacturing: interlocking interfaces for fused filament fabrication on laser powder bed fusion substrates
Englert, L.; Heuer, A.; Engelskirchen, M. K.; Frölich, F.; Dietrich, S.; Liebig, W. V.; Kärger, L.; Schulze, V.
2022. Virtual and Physical Prototyping, 17 (3), 508–527. doi:10.1080/17452759.2022.2048228
Optimisation of manufacturing process parameters for variable component geometries using reinforcement learning
Zimmerling, C.; Poppe, C.; Stein, O.; Kärger, L.
2022. Materials and Design, 214, Art.-Nr.: 110423. doi:10.1016/j.matdes.2022.110423
2021
Modeling the Mullins effect of rubbers used in constrained‐layer damping applications
Jackstadt, A.; Frölich, F.; Weidenmann, K.; Kärger, L.
2021. Proceedings in applied mathematics and mechanics, 21 (1), e202100098. doi:10.1002/pamm.202100098
Micro-Scale Permeability Characterization of Carbon Fiber Composites Using Micrograph Volume Elements
Seuffert, J.; Bittrich, L.; Cardoso de Oliveira, L.; Spickenheuer, A.; Kärger, L.
2021. Frontiers in Materials, 8, Art. Nr.: 745084. doi:10.3389/fmats.2021.745084
Theoretical approximation of hydrodynamic and fiber-fiber interaction forces for macroscopic simulations of polymer flow process with fiber orientation tensors
Wittemann, F.; Kärger, L.; Henning, F.
2021. Composites. Part C, Open access, 5, Art.-Nr. 100152. doi:10.1016/j.jcomc.2021.100152
Extension of an analytical solution of a unified formulation to the frequency response of composite plates with viscoelastic layers
Jackstadt, A.; Kärger, L.
2021. Proceedings in applied mathematics and mechanics, 20 (1), Art.-Nr.: e202000234. doi:10.1002/pamm.202000234
Experimental and numerical analysis of mold filling in rotational molding
Nieschlag, J.; Seuffert, J.; Strack, D.; Friedmann, M.; Kärger, L.; Henning, F.; Fleischer, J.
2021. Journal of Composites Science, 5 (11), 289. doi:10.3390/jcs5110289
Modeling Short-Range Interactions in Concentrated Newtonian Fiber Bundle Suspensions
Meyer, N.; Hrymak, A. N.; Kärger, L.
2021. International Polymer Processing, 36 (3), 255–263. doi:10.1515/ipp-2020-4051
Wide Scale Characterization and Modeling of the Vibration and Damping Behavior of CFRP-Elastomer-Metal Laminates—Comparison and Discussion of Different Test Setups
Sessner, V.; Liebig, W. V.; Jackstadt, A.; Schmid, D.; Ehrig, T.; Holeczek, K.; Gräbner, N.; Kostka, P.; Wagner, U. von; Weidenmann, K. A.; Kärger, L.
2021. Applied composite materials, 28 (5), 1715–1746. doi:10.1007/s10443-021-09934-7
Systematic approach for finite element analysis of thermoplastic impregnated 3D filament winding structures – General concept and first validation results
Haas, J.; Hassan, O. N.; Beck, B.; Kärger, L.; Henning, F.
2021. Composite Structures, 268, Art.-Nr.: 113964. doi:10.1016/j.compstruct.2021.113964
A 3D process simulation model for wet compression moulding
Poppe, C. T.; Krauß, C.; Albrecht, F.; Kärger, L.
2021. Composites Part A: Applied Science and Manufacturing, 145, Art.-Nr.: 106379. doi:10.1016/j.compositesa.2021.106379
2020
The impact of draping effects on the stiffness and failure behavior of unidirectional non-crimp fabric fiber reinforced composites
Kunze, E.; Galkin, S.; Böhm, R.; Gude, M.; Kärger, L.
2020. Materials, 13 (13), Art. Nr.: 2959. doi:10.3390/ma13132959
Experimental and numerical investigations of pressure-controlled resin transfer molding (PC-RTM)
Seuffert, J.; Rosenberg, P.; Kärger, L.; Henning, F.; Kothmann, M. H.; Deinzer, G.
2020. Advanced manufacturing: polymer & composites science, 6 (3), 154–163. doi:10.1080/20550340.2020.1805689
Direct Bundle Simulation approach for the compression molding process of Sheet Molding Compound
Meyer, N.; Schöttl, L.; Bretz, L.; Hrymak, A. N.; Kärger, L.
2020. Composites / A, 132, Article: 105809. doi:10.1016/j.compositesa.2020.105809
A novel approach for segmenting and mapping of local fiber orientation of continuous fiber-reinforced composite laminates based on volumetric images
Schöttl, L.; Dörr, D.; Pinter, P.; Weidenmann, K. A.; Elsner, P.; Kärger, L.
2020. NDT & E international, 110, Art.-Nr.: 102194. doi:10.1016/j.ndteint.2019.102194
On the applicability of thermoforming characterization and simulation approaches to glass mat thermoplastic composites
Dörr, D.; Gergely, R.; Ivanov, S.; Kärger, L.; Henning, F.; Hrymak, A.
2020. Procedia manufacturing, 47, 118–125. doi:10.1016/j.promfg.2020.04.148
A 3D modelling approach for fluid progression during process simulation of wet compression moulding - Motivation & approach
Poppe, C.; Albrecht, F.; Krauß, C.; Kärger, L.
2020. Procedia manufacturing, 47, 85–92. doi:10.1016/j.promfg.2020.04.141
Capabilities of macroscopic forming simulation for large-scale forming processes of dry and impregnated textiles
Kärger, L.; Galkin, S.; Dörr, D.; Poppe, C.
2020. Procedia manufacturing, 47, 140–147. doi:10.1016/j.promfg.2020.04.155
Estimating optimum process parameters in textile draping of variable part geometries - A reinforcement learning approach
Zimmerling, C.; Poppe, C.; Kärger, L.
2020. Procedia manufacturing, 47, 847–854. doi:10.1016/j.promfg.2020.04.263
Material modeling in forming simulation of three-dimensional fiber-metal-laminates - A parametric study
Werner, H. O.; Poppe, C.; Henning, F.; Kärger, L.
2020. Procedia manufacturing, 47, 154–161. doi:10.1016/j.promfg.2020.04.160
Parameter Identification of Fiber Orientation Models Based on Direct Fiber Simulation with Smoothed Particle Hydrodynamics
Meyer, N.; Saburow, O.; Hohberg, M.; Hrymak, A. N.; Henning, F.; Kärger, L.
2020. Journal of composites science, 4 (2), 77. doi:10.3390/jcs4020077
Reduced-Integrated 8-Node Hexahedral Solid-Shell Element for the Macroscopic Forming Simulation of Continuous Fibre-Reinforced Polymers
Schäfer, B.; Dörr, D.; Kärger, L.
2020. Procedia manufacturing, 47, 134–139. doi:10.1016/j.promfg.2020.04.154
2019
Virtual Product Development Using Simulation Methods and AI
Zimmerling, C.; Poppe, C.; Kärger, L.
2019. Lightweight Design worldwide, 12 (6), 12–19. doi:10.1007/s41777-019-0064-x
Virtuelle Produktentwicklung mittels Simulationsmethoden und KI
Zimmerling, C.; Poppe, C.; Kärger, L.
2019. Lightweight design, 12 (6), 12–19. doi:10.1007/s35725-019-0069-8
Application of a mixed variational higher order plate theory towards understanding the deformation behavior of hybrid laminates
Jackstadt, A.; Liebig, W. V.; Sessner, V.; Weidenmann, K. A.; Kärger, L.
2019. Proceedings in applied mathematics and mechanics, 19 (1), e201900048. doi:10.1002/pamm.201900048
A machine learning assisted approach for textile formability assessment and design improvement of composite components
Zimmerling, C.; Dörr, D.; Henning, F.; Kärger, L.
2019. Composites / A, 124, Art. Nr.: 105459. doi:10.1016/j.compositesa.2019.05.027
Frequency domain modelling of transversely isotropic viscoelastic fibre-reinforced plastics
Liebig, W. V.; Jackstadt, A.; Sessner, V.; Weidenmann, K. A.; Kärger, L.
2019. Composites science and technology, 180, 101–110. doi:10.1016/j.compscitech.2019.04.019
Manufacturing uncertainties and resulting robustness of optimized patch positions on continuous-discontinuous fiber reinforced polymer structures
Fengler, B.; Schäferling, M.; Schäfer, B.; Bretz, L.; Lanza, G.; Häfner, B.; Hrymak, A.; Kärger, L.
2019. Hospital physician, 213, 47–57. doi:10.1016/j.compstruct.2019.01.063
Experimental and Numerical Determination of the Local Fiber Volume Content of Unidirectional Non-Crimp Fabrics with Forming Effects
Galkin, S.; Kunze, E.; Kärger, L.; Böhm, R.; Gude, M.
2019. Journal of composites science, 3 (1), Article: 19. doi:10.3390/jcs3010019
Development of a modular draping test bench for analysis of infiltrated woven fabrics in wet compression molding
Albrecht, F.; Zimmerling, C.; Poppe, C.; Kärger, L.; Henning, F.
2019. Key engineering materials, 809, 35–40. doi:10.4028/www.scientific.net/KEM.809.35
A coupled thermomechanical approach for finite element forming simulation of continuously fiber-reinforced semi-crystalline thermoplastics
Dörr, D.; Joppich, T.; Kugele, D.; Henning, F.; Kärger, L.
2019. Composites / A, 125, 105508. doi:10.1016/j.compositesa.2019.105508
Comparative experimental and numerical analysis of bending behaviour of dry and low viscous infiltrated woven fabrics
Poppe, C.; Rosenkranz, T.; Dörr, D.; Kärger, L.
2019. Composites / A, 124, Art. Nr.: 105466. doi:10.1016/j.compositesa.2019.05.034
Injection molding simulation of short fiber reinforced thermosets with anisotropic and non-Newtonian flow behavior
Wittemann, F.; Maertens, R.; Kärger, L.; Henning, F.
2019. Composites / A, 124, 105476. doi:10.1016/j.compositesa.2019.105476
Multi-objective CoFRP patch optimization with consideration of manufacturing constraints and integrated warpage simulation
Fengler, B.; Hrymak, A.; Kärger, L.
2019. Hospital physician, 221, Art. Nr.: 110861. doi:10.1016/j.compstruct.2019.04.033
Virtual process chain of sheet molding compound: Development, validation and perspectives
Görthofer, J.; Meyer, N.; Pallicity, T. D.; Schöttl, L.; Trauth, A.; Schemmann, M.; Hohberg, M.; Pinter, P.; Elsner, P.; Henning, F.; Hrymak, A.; Seelig, T.; Weidenmann, K.; Kärger, L.; Böhlke, T.
2019. Composites / B, 169, 133–147. doi:10.1016/j.compositesb.2019.04.001
Damping Characterization of Hybrid Carbon Fiber Elastomer Metal Laminates using Experimental and Numerical Dynamic Mechanical Analysis
Sessner, V.; Jackstadt, A.; Liebig, W.; Kärger, L.; Weidenmann, K.
2019. Journal of composites science, 3 (1), 3. doi:10.3390/jcs3010003
Fast processing and continuous simulation of automotive structural composite components
Henning, F.; Kärger, L.; Dörr, D.; Schirmaier, F. J.; Seuffert, J.; Bernath, A.
2019. Composites science and technology, 171, 261–279. doi:10.1016/j.compscitech.2018.12.007
2018
Numerical and experimental investigations of the damping behaviour of hybrid CFRP-elastomer-metal laminates
Liebig, W. V.; Sessner, V.; Weidenmann, K. A.; Kärger, L.
2018. Composite Structures, 202, 1109–1113. doi:10.1016/j.compstruct.2018.05.051
Nonlinear hyperviscoelastic modelling of intra-ply deformation behaviour in finite element forming simulation of continuously fibre-reinforced thermoplastics
Dörr, D.; Henning, F.; Kärger, L.
2018. Composites / A, 109, 585–596. doi:10.1016/j.compositesa.2018.03.037
Forming optimisation embedded in a CAE chain to assess and enhance the structural performance of composite components
Kärger, L.; Galkin, S.; Zimmerling, C.; Dörr, D.; Linden, J.; Oeckerath, A.; Wolf, K.
2018. Composite structures, 192, 143–152. doi:10.1016/j.compstruct.2018.02.041
Simulation of Reinforced Reactive Injection Molding with the Finite Volume Method
Wittemann, F.; Maertens, R.; Bernath, A.; Hohberg, M.; Kärger, L.; Henning, F.
2018. Journal of composites science, 2 (1), Aritcle no: 5. doi:10.3390/jcs2010005
Simulating Mold Filling in Compression Resin Transfer Molding (CRTM) Using a Three-Dimensional Finite-Volume Formulation
Seuffert, J.; Kärger, L.; Henning, F.
2018. Journal of composites science, 2 (2), Article: 23. doi:10.3390/jcs2020023
Experimental and numerical investigation of the shear behaviour of infiltrated woven fabrics
Poppe, C.; Dörr, D.; Henning, F.; Kärger, L.
2018. Composites / A, 114, 327–337. doi:10.1016/j.compositesa.2018.08.018
Experimental and numerical study of the influence of integrated load transmission elements on filling behavior in resin transfer molding
Magagnato, D.; Seuffert, J.; Bernath, A.; Kärger, L.; Henning, F.
2018. Composite structures, 198, 135–143. doi:10.1016/j.compstruct.2018.05.021
Simplified phenomenological model of the nonlinear behavior of FRPs under combined stress states
Galkin, S.; Schirmaier, F. J.; Kärger, L.
2018. Journal of composite materials, 52 (4), 475–485. doi:10.1177/0021998317709332
2017
Rheological In-Mold Measurements and Characterizations of Sheet-Molding-Compound (SMC) Formulations with Different Constitution Properties by Using a Compressible Shell Model
Hohberg, M.; Kärger, L.; Bücheler, D.; Henning, F.
2017. International polymer processing, 32 (5), 659–668. doi:10.3139/217.3556
A macroscopic approach to simulate the forming behaviour of stitched unidirectional non-crimp fabrics (UD-NCF)
Schirmaier, F. J.; Dörr, D.; Henning, F.; Kärger, L.
2017. Composites / A, 102, 322–335. doi:10.1016/j.compositesa.2017.08.009
An Iterative Approach for the Determination of Tailored Blanks for Waste-Free Composite Forming by Means of FE Forming Simulation
Dörr, D.; Lipowsky, L.; Schirmaier, F. J.; Kärger, L.; Henning, F.
2017. International journal of automotive composites, 3 (2-4, SI), 323–338. doi:10.1504/IJAUTOC.2017.091427
Virtual characterization and macroscopic material modeling of a carbon fiber-reinforced PA6 UD composite
Rösner, A. M.; Kärger, L.; Henning, F.
2017. Journal of composite materials, 51 (21), 3075–3086. doi:10.1177/0021998316681186
A Benchmark Study of Finite Element Codes for Forming Simulation of Thermoplastic UD-Tapes
Dörr, D.; Brymerski, W.; Ropers, S.; Leutz, D.; Joppich, T.; Kärger, L.; Henning, F.
2017. Procedia CIRP, 66, 101–106. doi:10.1016/j.procir.2017.03.223
Evaluation of the physical mechanisms of adhesively bonded metal-based hybrid material systems under tensile loading
Hummelberger, D.; Kärger, L.; Weidenmann, K. A.; Staeves, J.; Henning, F.
2017. Materials and design, 132, 215–224. doi:10.1016/j.matdes.2017.07.001
Rheological measurements and rheological shell model Considering the compressible behavior of long fiber reinforced sheet molding compound (SMC)
Hohberg, M.; Kärger, L.; Henning, F.; Hrymak, A.
2017. Composites / A, 95, 110–117. doi:10.1016/j.compositesa.2017.01.006
A viscoelastic approach for modeling bending behavior in finite element forming simulation of continuously fiber reinforced composites
Dörr, D.; Schirmaier, F. J.; Henning, F.; Kärger, L.
2017. Composites / A, 94, 113–123. doi:10.1016/j.compositesa.2016.11.027
2016
Experimental and numerical analysis of bolt-loaded open-hole laminates reinforced by winded carbon rovings
Botzkowski, T.; Galkin, S.; Wagner, S.; Sikora, S. P.; Kärger, L.
2016. Composite structures, 141, 194–202. doi:10.1016/j.compstruct.2016.01.057
Accurate Cure Modeling for Isothermal Processing of Fast Curing Epoxy Resins
Bernath, A.; Kärger, L.; Henning, F.
2016. Polymers, 8 (11), 390. doi:10.3390/polym8110390
2015
Development and validation of a CAE chain for unidirectional fibre reinforced composite components
Kärger, L.; Bernath, A.; Fritz, F.; Galkin, S.; Magagnato, D.; Oeckerath, A.; Schön, A.; Henning, F.
2015. Composite structures, 132, 350–358. doi:10.1016/j.compstruct.2015.05.047
Evaluation of different hybrid material systems and systematic analysis of their physical mechanisms in terms of fatigue
Hummelberger, D.; Kärger, L.; Henning, F.
2015. Materials Science Forum, 825-826, 473–481. doi:10.4028/www.scientific.net/MSF.825-826.473
2014
A new efficient and reliable algorithm to determine the fracture angle for Puck’s 3D matrix failure criterion for UD composites
Schirmaier, F.; Weiland, J.; Kärger, L.; Henning, F.
2014. Composites Science and Technology, 100, 19–25. doi:10.1016/j.compscitech.2014.05.033
2010
Investigations on imperfection sensitivity and deduction of improved knock-down factors for unstiffened CFRP cylindrical shells
Degenhardt, R.; Kling, A.; Bethge, A.; Orf, J.; Kärger, L.; Zimmermann, R.; Rohwer, K.; Calvi, A.
2010. Composite Structures, 92 (8), 1939–1946. doi:10.1016/j.compstruct.2009.12.014
2009
Evaluation of Impact Assessment Methodologies. Part I: Applied Methods
Kärger, L.; Baaran, J.; Gunnion, A.; Thomson, R.
2009. Composites Part B, 40 (1), 65–70
Evaluation of Impact Assessment Methodologies Part II: Experimental Validation
Kärger, L.; Baaran, J.; Gunnion, A.; Thomson, R.
2009. Composites Part B, 40 (1), 71–76
2008
Efficient simulation of low-velocity impacts on composite sandwich panels
Kärger, L.; Baaran, J.; Teßmer, J.
2008. Computers and Structures, 86 (9), 988–996
Efficient prediction of composite damage resistance and damage tolerance
Baaran, J.; Kärger, L.; Wetzel, A.
2008. Proceedings of the Institution of Mechanical Engineers. Part G: Journal of Aerospace Engineering, 222 (2), 179–188
2007
Rapid simulation of impacts on composite sandwich panels inducing barely visible damage
Kärger, L.; Baaran, J.; Teßmer, J.
2007. Composite Structures, 79 (4), 527–534
Stiffness and failure behaviour of folded sandwich cores under combined transverse shear and compression
Kintscher, M.; Kärger, L.; Wetzel, A.; Hartung, D.
2007. Composites Part A: Applied Science and Manufacturing, 38 (5), 1288–1295
2006
A three-layered sandwich element with improved transverse shear stiffness and stresses based on FSDT
Kärger, L.; Wetzel, A.; Rolfes, R.; Rohwer, K.
2006. Computers and Structures, 84 (13-14), 843–854
2005
Evaluation of two finite element formulations for a rapid 3D stress analysis of sandwich structures
Wetzel, A.; Kärger, L.; Rolfes, R.; Rohwer, K.
2005. Computers and Structures, 83 (19-20), 843–854
Book Chapters
2024
HyCEML – Hybrid CFRP Elastomer Metal Laminates Containing Elastomeric Interfaces for Deliberate Dissipation
Jackstadt, A.; Sessner, V.; Liebig, W.; Kärger, L.; Weidenmann, K.
2024. Calm, Smooth and Smart. Ed.: P. Eberhard, 105–125, Springer Nature Switzerland. doi:10.1007/978-3-031-36143-2_6
Research Data
2024
Forming tests of a uni- and a bidirectional non-crimp fabric for different orientations and geometries (hemisphere, tetrahedron, square box)
Schäfer, B.; Zheng, R.; Colmars, J.; Platzer, A.; Naouar, N.; Kärger, L.
2024, June 24. doi:10.5281/zenodo.12516897
of-rtm-6 – An OpenFOAM-6 extension with curing models and anisotropic permeability for usage in LCM simulations
Bernath, A.; Seuffert, J.; Dietrich, S.; Poppe, N.; Magagnato, D.; Wittemann, F.; Henning, F.; Kärger, L.
2024. doi:10.5281/zenodo.13327698

Proceedings


Conference Papers
2024
Warpage modelling of carbon fibre reinforced SMC components in automotive applications
Gorde, S. S.; Krauß, C.; Bernath, A.; Olma, M.; Suckfüll, K.; Schmitz, S.; Kärger, L.
2024. ECCM21 : 21st European Conference on Composite Materials. Ed.: C. Binetruy, 1260–1268, European Society for Composite Materials (ESCM). doi:10.60691/yj56-np80
Investigation of the thermoviscoelastic behavior of a closed-cell polymer structural foam under pressure for processing in hybrid LCM processes
Dietrich, S.; Dohmen, C.; Frölich, F.; Jackstadt, A.; Wittemann, F.; Kärger, L.
2024. Proceedings of the 21st European Conference on Composite Materials. Vol 2 Material Science. Ed.: C. Binetruy, 548–554, European Society for Composite Materials (ESCM)
Modeling time-dependent anisotropy in MEX component-scale process simulation
Di Nardo, M. E.; Frölich, F.; Kärger, L.; Carlone, P.
2024. Material Forming: ESAFORM 2024, 603–612, Materials Research Forum LLC. doi:10.21741/9781644903131-67
Influence of viscosity, binder activation, and loading rate on the membrane response of an infiltrated UD-NCF
Miranda Portela, R.; Schäfer, B.; Kärger, L.; Rocha de Faria, A.; Montesano, J.
2024. Material Forming: ESAFORM Toulouse, 2024 : the 27th International ESAFORM Conference on Material Forming -ESAFORM 2024- held in Toulouse, France, April 24-26, 2024, 494–502, Materials Research Forum LLC. doi:10.21741/9781644903131-55
Investigation of the friction behavior of uni- and bidirectional non-crimp fabrics
Schäfer, B.; Naouar, N.; Kärger, L.
2024. Material Forming: ESAFORM Toulouse 2024 : the 27th International ESAFORM Conference on Material Forming -ESAFORM 2024- held in Toulouse, France, April 24-26, 2024, Ed.: Araujo, Anna Carla; Korycki, Adrian; Olivier, Philippe, Schmidt, Fabrice, 540–548, Materials Research Forum LLC. doi:10.21741/9781644903131-60
Draping of biaxial non-crimp fabric on hemispherical shape
Zheng, R.; Naouar, N.; Schäfer, B.; Platzer, A.; Colmars, J.; Kärger, L.; Boisse, P.
2024. Material Forming: ESAFORM Toulouse 2024 : the 27th International ESAFORM Conference on Material Forming -ESAFORM 2024- held in Toulouse, France, April 24-26, 2024, Ed.: Araujo, Anna Carla; Korycki, Adrian; Olivier, Philippe, Schmidt, Fabrice, 623–630, Materials Research Forum LLC. doi:10.21741/9781644903131-69
Electromechanical optimization of high reluctance torque variable flux machines under structural mechanical constraints
Kesten, J.; Armbruster, D.; Frölich, F.; Kärger, L.; Bonten, C.; Doppelbauer, M.
2024. Elektromechanische Antriebssysteme 2023 - Electromechanical Drive Systems 2023 Tagungsband der 9. Fachtagung (VDE OVE) 8. und 9. November 2023 in Wien, Ed.: Energietechnische Gesellschaft im VDE (ETG), 189–194, VDE Verlag
Pultrusion process simulation - modelling of the injection and impregnation chamber
Poppe, N.; Wilhelm, M.; Kärger, L.
2024. Proceedings of the 2023 International Conference on Composite Materials, Belfast, 30th July - 4th August 2023. Ed.: B. Falzon, Queen’s University Belfast
Continuous Simulation of a Continuous-Discontinuous Fiber Reinforced Thermoplastic (CoDiCoFRTP) Compression Molding Process
Schreyer, L.; Scheuring, B. M.; Christ, N.; Blarr, J.; Krauß, C.; Liebig, W. V.; Weidenmann, K. A.; Böhlke, T.; Hrymak, A.; Kärger, L.
2024. Proceedings of the 2023 International Conference on Composite Materials, Belfast, 30th July - 4th August 2023, Queen’s University Belfast
Anisotropic Warpage Prediction of Injection Molded Parts with Phenolic Matrix
Wittemann, F.; Bernath, A.; Meyer, N.; Kärger, L.
2024. Proceedings of the 21st European Conference on Composite Materials (ECCM 2024). Ed.: C. Binetruy. Vol. 5, 139–145, European Society for Composite Materials (ESCM)
Revisiting Constrained-Layer Damping in Hybrid Lightweight Laminates: Characterization, Modeling and Design Guidelines
Jackstadt, A.; Kärger, L.
2024. Volume 3 - Material and Structural Behavior – Simulation & Testing, 21st European Conference on Composite Materials (ECCM 2024). Nantes, Frankreich, 02.07.2024–05.07.2024, 1323–1330
Strain gradient calculation as a basis for localized roving slip prediction in macroscopic forming simulation of non-crimp fabrics
Wank, J. P.; Schäfer, B.; Mitsch, J.; Kärger, L.
2024. Material Forming: ESAFORM 2024, 467–476, Materials Research Forum LLC. doi:10.21741/9781644903131-52
Considering the viscoelastic material behavior in a solid-shell element for thermoforming simulation
Mitsch, J.; Schäfer, B.; Wank, J. P.; Kärger, L.
2024. Material Forming: ESAFORM 2024, 457–466, Materials Research Forum LLC. doi:10.21741/9781644903131-51
2023
Design concept of a repairable YASA axial flux machine with a hybrid cooling system
Schäfer, A.; Baranowski, M.; Springmann, M.; Hof, L.; Frölich, F.; Peter, A.; Parspour, N.; Fleischer, J.; Middendorf, P.; Kärger, L.; Michalowski, A.
2023. 12th International Conference on Power Electronics, Machines and Drives (PEMD 2023), 119–128, Institution of Engineering and Technology (IET). doi:10.1049/icp.2023.1987
Numerical Study on Uncertainty Effects in Injection Molding
Wittemann, F.; Kärger, L.
2023. 23rd International Conference on Composite Materials : (ICCM 23) held in Belfast, Northern Ireland, from July 30th to August 4th 2023, Queen’s University Belfast
Forming process optimisation for variable geometries by machine learning – Convergence analysis and assessment
Zimmerling, C.; Kärger, L.
2023. Material Forming 26th International ESAFORM Conference on Material Forming (ESAFORM 2023) Krakau, Polen, 19.04.2023–21.04.2023, 1155–1166, Materials Research Forum LLC. doi:10.21741/9781644902479-126
Modeling multiaxial stress states in forming simulation of woven fabrics
Kärger, L.; Schäfer, F.; Werner, H. O.
2023. Material Forming 26th International ESAFORM Conference on Material Forming (ESAFORM 2023) Krakau, Polen, 19.04.2023–21.04.2023, 357–366, Materials Research Forum LLC. doi:10.21741/9781644902479-39
Modeling of 3D fluid-structure-interaction during in-situ hybridization of double-curved fiber-metal-laminates
Poppe, C.; Kruse, M.; Kärger, L.
2023. Material Forming 26th International ESAFORM Conference on Material Forming (ESAFORM 2023) Krakau, Polen, 19.04.2023–21.04.2023, 219–230, Materials Research Forum LLC. doi:10.21741/9781644902479-24
Multiscale behavior of locally reinforced composite structures produced by tailored fiber placement
Bittrich, L.; Lisboa, T.; Uhlig, K.; Dietrich, S.; Kärger, L.; Stommel, M.; Spickenheuer, A.
2023. 23rd International Conference on Composite Materials, ICCM 2023 : Belfast, 30th July - 4th August 2023, International Committee on Composite Materials
Numerical Investigation of the Mold Filling Behavior of Sandwich Parts in Resin Transfer Molding
Dietrich, S.; Seuffert, J.; Kärger, L.
2023. 23rd International Conference on Composite Materials (ICCM 2023), 8 S., Queen’s University Belfast
Investigation of the compaction behavior of uni- and bidirectional non-crimp fabrics
Schäfer, B.; Zheng, R.; Philippe, B.; Kärger, L.
2023. Material Forming. Ed.: L. Madej, 331–338, Materials Research Forum LLC. doi:10.21741/9781644902479-36
2022
Fiber breakage modeling based on hydrodynamic forces in macroscopic process simulations
Wittemann, F.; Maertens, R.; Henning, F.; Kärger, L.
2022. Composites Meet Sustainability - Proceedings of the 20th European Conference on Composite Materials. Ed.: A. Vassilopoulos, École Polytechnique Fédérale de Lausanne (EPFL)
Generation of Initial Fiber Orientation States for Long Fiber Reinforced Thermoplastic Compression Molding Simulation
Schreyer, L.; Blarr, J.; Höger, K.; Meyer, N.; Kärger, L.
2022. Composites Meet Sustainability : Proceedings of the 20th European Conference on Composite Materials, ECCM20. 26-30 June, 2022, Lausanne, Switzerland. Bd.: 4. Ed.: A. Vassilopoulos, 687–694, École Polytechnique Fédérale de Lausanne (EPFL)
Design Approach for a Novel Multi Material Variable Flux Synchronous Reluctance Machine without Rare Earth Magnets
Kesten, J.; Frölich, F.; Wittemann, F.; Knirsch, J.; Bechler, F.; Kärger, L.; Eberhard, P.; Henning, F.; Doppelbauer, M.
2022. 2022 International Conference on Electrical Machines (ICEM), Valencia, Spain, 05-08 September 2022, 2304–2310, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICEM51905.2022.9910780
CAE-Simulationskette zur Werkzeug- und Prozessauslegung von Carbonfaser-SMC-Bauteilen
Gorde, S. S.; Krauß, C.; Bartkowiak, M.; Kärger, L.
2022. NAFEMS DACH Regionalkonferenz 2022: Konferenz für Berechnung & Simulation im Engineering, 4. - 6. Oktober 2022, Bamberg, D, 142–147, NAFEMS Deutschland, Österreich, Schweiz GmbH
2021
Manufacturing Simulation of Sheet Molding Compound (SMC)
Revfi, S.; Albers, A.; Meyer, N.; Kärger, L.; Schöttl, L.; Bartkowiak, M.; Behdinan, K.
2021. NAFEMS World Congress (NWC 2021)
Deep neural networks as surrogate models for time-efficient manufacturing process optimisation
Zimmerling, C.; Schindler, P.; Seuffert, J.; Kärger, L.
2021. ESAFORM 2021 - 24th International Conference on Material Forming, ULiège Library. doi:10.25518/esaform21.3882
Prediction of forming effects in UD-NCF by macroscopic forming simulation – Capabilities and limitations
Kärger, L.; Galkin, S.; Kunze, E.; Gude, M.; Schäfer, B.
2021. ESAFORM 2021 - 24th International Conference on Material Forming, ULiège Library. doi:10.25518/esaform21.355
Potential and challenges of a solid-shell element for the macroscopic forming simulation of engineering textiles
Schäfer, B.; Dörr, D.; Kärger, L.
2021. ESAFORM 2021 - 24th International Conference on Material Forming, ULiège Library. doi:10.25518/esaform21.883
Towards numerical prediction of flow-induced fiber displacements during wet compression molding (WCM)
Poppe, C.; Albrecht, F.; Krauß, C.; Kärger, L.
2021. ESAFORM 2021 - 24th International Conference on Material Forming, ID: 1938, ULiège Library. doi:10.25518/esaform21.1938
Material modelling of fabric deformation in forming simulation of fiber-metal laminates - A review on modelling fabric coupling mechanisms
Werner, H. O.; Schäfer, F.; Henning, F.; Kärger, L.
2021. ESAFORM 2021: 24th International Conference on Material Forming, 14-16 April, online, Art.-Nr.: 2056, Université de Liège. doi:10.25518/esaform21.2056
2019
How to combine plastics and light metals for forming processes and the influence of moisture content on forming behavior
Härtel, S.; Kärger, L.; Meyer, N.; Brückner, E.; Awiszus, B.; Graf, M.; Carolin, B.; Gehde, M.
2019. The 22nd International Conference on Advances in Materials and Processing Technology (AMPT 2019), 119, National Taiwan University of Science and Technology
Interface Challenges and Solution Approaches with Regard to the New VMAP Standard ina Continuous CAE-Chain for the Holistic Manufacturing Simulation of High Performance Composites
Krauß, C.; Dörr, D.; Seuffert, J.; Bernath, A.; Galkin, S.; Kärger, L.
2019. A world of engineering simulation : NWC, NAFEMS World Congress 2019 : 17-20 June, Quebec City, Canada
Experimental Description of Draping Effects and their Influence on the Structural Behavior of Fiber Reinforced Composites
Kunze, E.; Galkin, S.; Gröger, B.; Böhm, R.; Kärger, L.; Gude, M.
2019. 22nd International Conference on Composites Materials (ICCM22), Melbourne, AUS, August 11-16, 2019
Comparison of the flow and rheological behavior of two semi-structural Sheet-Molding-Compound (SMC) based on a hybrid resin and glass or carbon fibers
Hohberg, M.; Kärger, L.; Henning, F.; Hrymak, A.
2019. Proceedings of PPS-33: The 33rd International Conference of the Polymer Processing Society - Conference Papers, 10-14 December 2017, Cancun, Mexico. Ed.: O. Manero, Art.-Nr.: 040002, American Institute of Physics (AIP). doi:10.1063/1.5121660
On the relevance of thermomechanics and crystallization kinetics for FE thermoforming simulation of semi-crystalline thermoplastic tapes
Dörr, D.; Kugele, D.; Joppich, T.; Henning, F.; Kärger, L.
2019. Proceedings 22nd International ESAFORM Conference on Material Forming, ESAFORM 2019; Vitoria-Gasteiz; Spain; 8 May 2019 through 10 May 2019, Art.-Nr.: 020011, American Institute of Physics (AIP). doi:10.1063/1.5112516
Experimental and numerical investigation of the contact behavior during FE forming simulation of continuously reinforced composites in wet compression molding
Poppe, C.; Dörr, D.; Kraus, F.; Kärger, L.
2019. Proceedings of the 22nd International ESAFORM Conference on Material Forming ; Vitoria-Gasteiz, Spain, 8–10 May 2019. Ed.: L. Galdos, Art.-Nr.: 020002, American Institute of Physics (AIP). doi:10.1063/1.5112507
An approach for rapid prediction of textile draping results for variable composite component geometries using deep neural networks
Zimmerling, C.; Trippe, D.; Fengler, B.; Kärger, L.
2019. Proceedings of the 22nd International ESAFORM Conference on Material Forming ; Vitoria-Gasteiz, Spain, 8–10 May 2019. Ed.: L. Galdos, Art.-Nr.: 020007, American Institute of Physics (AIP). doi:10.1063/1.5112512
Numerical modeling of a hybrid forming process for three-dimensionally curved fiber-metal laminates
Werner, H. O.; Dörr, D.; Henning, F.; Kärger, L.
2019. Proceedings of the 22nd International ESAFORM Conference on Material Forming ; Vitoria-Gasteiz, Spain, 8–10 May 2019. Ed.: L. Galdos, Art.-Nr.: 020019, American Institute of Physics (AIP). doi:10.1063/1.5112524
2018
Strength of UD-laminates depending on the fiber volume content: experimental tests and modelling
Galkin, S.; Kärger, L.
2018. 18th European Conference on Composite Materials (ECCM 2018), Athen, GR, June 24-28, 2018
Application and Evaluation of Meta-Model Assisted Optimisation Strategies for Gripper-Assisted Fabric Draping in Composite Manufacturing
Zimmerling, C.; Pfrommer, J.; Liu, J.; Beyerer, J.; Henning, F.; Kärger, L.
2018. 18th European Conference on Composite Materials (ECCM 2018), Athen, GR, June 24-28, 2018
Optimisation of manufacturing process parameters using deep neural networks as surrogate models
Pfrommer, J.; Zimmerling, C.; Liu, J.; Kärger, L.; Henning, F.; Beyerer, J.
2018. 51st CIRP Conference on Manufacturing Systems, CIRP CMS 2018; Stockholm Waterfront Congress CentreStockholm; Sweden; 16 May 2018 through 18 May 2018. Ed.: T. Kjellberg, 426–431, Elsevier. doi:10.1016/j.procir.2018.03.046
A 2D modeling approach for fluid propagation during FE-forming simulation of continuously reinforced composites in wet compression moulding
Poppe, C.; Dörr, D.; Henning, F.; Kärger, L.
2018. Proceedings of the 21st International ESAFORM Conference on Material Forming : ESAFORM 2018 : Palermo, Italy, 23-25 April 2018. Ed.: L. Fratini, Art.Nr. 020022, American Institute of Physics (AIP). doi:10.1063/1.5034823
Modelling approach for anisotropic inter-ply slippage in finite element forming simulation of thermoplastic UD-tapes
Dörr, D.; Faisst, M.; Joppich, T.; Poppe, C.; Henning, F.; Kärger, L.
2018. Proceedings of the 21st International ESAFORM Conference on Material Forming : ESAFORM 2018 : Palermo, Italy, 23-25 April 2018. Ed.: L. Fratini, Art.Nr. 020005, American Institute of Physics (AIP). doi:10.1063/1.5034806
A meta-model based approach for rapid formability estimation of continuous fibre reinforced components
Zimmerling, C.; Dörr, D.; Henning, F.; Kärger, L.
2018. Proceedings of the 21st International ESAFORM Conference on Material Forming : ESAFORM 2018 : Palermo, Italy, 23-25 April 2018. Ed.: L. Fratini, Art.Nr. 020042, American Institute of Physics (AIP). doi:10.1063/1.5034843
2017
A three-dimensional damage model for transversely isotropic composites in the framework of finite strain
Naake, D.; Welschinger, F.; Kärger, L.; Henning, F.
2017. 21st International Conference on Composite Materials, ICCM 2017; Xi’an; China; 20 August 2017 through 25 August 2017, ICCM
Modeling of the Non-Isothermal Crystallization Kinetics of Polyamide 6 Composites During Thermoforming
Kugele, D.; Dörr, D.; Wittemann, F.; Hangs, B.; Rausch, J.; Kärger, L.; Henning, F.
2017. Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017, Ireland, Dublin, 26th - 28th April 2017, Art.Nr. 030005, American Institute of Physics (AIP). doi:10.1063/1.5007992
Modeling and validation of gripper induced membrane forces in finite element forming simulation of continuously reinforced composites
Poppe, C.; Dörr, D.; Kärger, L.; Henning, F.; Joppich, T.; Henning, F.
2017. Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017, Ireland, Dublin, 26–28 April 2017, Art.Nr. 030002, American Institute of Physics (AIP). doi:10.1063/1.5007989
On the relevance of modeling viscoelastic bending behavior in finite element forming simulation of continuously fiber reinforced thermoplastics
Dörr, D.; Schirmaier, F. J.; Henning, F.; Kärger, L.
2017. Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017, Ireland, Dublin, 26th - 28th April 2017, Art.Nr. 030003, American Institute of Physics (AIP). doi:10.1063/1.5007990
Simulation of the influence of embedded inserts on the rtm filling behavior considering local fiber structure
Seuffert, J.; Kärger, L.; Henning, F.
2017. 21st Symposium on Composites, 2017; Bremen; Germany; 5 July 2017 through 7 July 2017. Ed.: A. S. Herrmann, 681–688, Trans Tech Publications. doi:10.4028/www.scientific.net/KEM.742.681
2016
Sensitivity of material properties on wrinkling behavior and fiber reorientation of thermoplastic UD-Tape laminates during forming analyzed by Finite Element forming simulation
Dörr, D.; Joppich, T.; Schirmaier, F.; Mosthaf, T.; Kärger, L.; Henning, F.
2016. 17th European Conference on Composite Materials, ECCM 2016, Munich, Germany; 26. - 30. June, 2016
Stress analysis and design suggestions for multi-loop carbon roving rosettes to reinforce bolt-loaded open-hole laminates
Kärger, L.; Botzkowski, T.; Galkin, S.; Wagner, S.; Sikora, S. P.
2016. ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials; Munich; Germany; 26 June 2016 through 30 June 2016, European Society for Composite Materials (ESCM)
On the thermal behavior of thermoplastic laminates during transfer - A novel wind-tunnel approach
Kugele, D.; Rausch, J.; Kriegseis, J.; Gündisch, K.; Kärger, L.; Henning, F.
2016. ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials; Munich; Germany; 26 June 2016 through 30 June 2016, European Society for Composite Materials (ESCM)
Characterization of the multi-axial material behavior of polymer foams during the RTM process
Gerstenkorn, J.; Kothmann, M. H.; Diebold, F.; Deinzer, G.; Kärger, L.; Henning, F.
2016. ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials; Munich; Germany; 26 June 2016 through 30 June 2016, CD-ROM, MAI Carbon Cluster Management
A method for validation of finite element forming simulation on basis of a pointwise comparison of distance and curvature
Dörr, D.; Joppich, T.; Schirmaier, F.; Mosthaf, T.; Kärger, L.; Henning, F.
2016. 19th International ESAFORM Conference on Material Forming (ESAFORM) Nantes; France; 27- 29 April 2016. Ed.: F. Chinesta, 170011, American Institute of Physics (AIP). doi:10.1063/1.4963567
2014
Development Stage and Application of a Virtual Process Chain for RTM Components
Kärger, L.; Fritz, F.; Magagnato, D.; Galkin, S.; Schön, A.; Oeckerath, A.; Wolf, K.; Henning, F.
2014. NAFEMS Seminar: “Simulation of Composites – A Closed Process Chain?”, 107–118, NAFEMS Deutschland, Österreich, Schweiz GmbH
Parametrisierung und Evaluierung von Schädigungsmodellen für Faserverbundkunststoffe auf Basis umfangreicher Charakterisierungs- und Validierungsversuche
Galkin, S.; Kärger, L.; Häfele, P.; Gall, M.; Voß, H.; Henning, F.
2014. International Association for the Engineering Analysis Community -NAFEMS-: Berechnung und Simulation - Anwendungen, Entwicklungen, Trends : NAFEMS deutschsprachige Konferenz 2014; 20-21 Mai 2014, Bamberg Bernau am Chiemsee: NAFEMS Deutschland, 2014, 133–137
2013
Virtual Process Chain for an integrated assessment of high-performance composite structures
Kärger, L.; Schön, A.; Fritz, F.; Böhler, P.; Magagnato, D.; Fischer, S.; Henning, F.
2013. NAFEMS World Congress, Salzburg, Österreich, 9.-12. Juni 2013
Aufbau einer durchgängigen CAE-Kette durch Verknüpfung von Drapier-, Formfüll- und Struktursimulation zur ganzheitlichen Bewertung von Bauteilen aus Hochleistungsfaserverbunden
Kärger, L.; Schön, A.; Fritz, F.; Böhler, P.; Magagnato, D.; Fischer, S.; Henning, F.
2013. 19. Symposium Verbundwerkstoffe und Werkstoffverbunde, Karlsruhe, 3.-5. Juli 2013
2010
Feedback Method transferring manufacturing data of TFP structures to as-built FE models
Kärger, L.; Kling, A.
2010. IV European Conference on Computational Mechanics (ECCM IV): Solids, Structures and Coupled Problems in Engineering, Paris, France, May 16-21, 2010, 1 CD-Rom
2007
Experimental validation of efficient impact simulation methodologies of sandwich structures
Kärger, L.; Baaran, J.; Teßmer, J.
2007. Proceedings of the 12th Australian International Aerospace Congress, Melbourne, March 19-22, 2007, 1 CD-Rom, Engineers Australia
Potentials and Limitation of FE-based Simulation Methods for Fibre Composite Structures
Kling, A.; Kärger, L.; Baaran, J.; Teßmer, J.; Degenhardt, R.
2007. Proceeding of the NAFEMS Seminar Reliable Use of Numerical Methods in Upfront Simulations, Wiesbaden, March 28-29, 2007

Lectures


2025
Micro-scale flow simulations for determination of interaction coefficients in macroscopic fibre orientation modelling
Wittemann, F.; Hof, L.; Meyer, N.; Kärger, L.
2025, April 9. 14th International Conference on Manufacturing of Advanced Composites (ICMAC 2025), Coventry, United Kingdom, April 9–10, 2025
Injection moulding simulation using a CEL approach: sensitivity analysis for the equation of state and mass scaling
Dohmen, C.; Wittemann, F.; Kärger, L.
2025, April 9. 14th International Conference on Manufacturing of Advanced Composites (ICMAC 2025), Coventry, United Kingdom, April 9–10, 2025
2024
Hyperelastic membrane approach for macroscopic forming simulations of unidirectional non-crimp fabrics (UD-NCF)
Schäfer, B.; Dörr, D.; Zheng, R.; Naouar, N.; Kärger, L.
2024, September 11. 15th TexComp : Coming back home (2024), Leuven, Belgium, September 11–13, 2024
Initial stack placement strategies for carbon fiber- reinforced sheet molding compound (C-SMC)
Olma, M.; Meyer, N.; Krauß, C.; Wittemann, F.; Kärger, L.
2024, July 5. 21st European Conference on Composite Materials (ECCM 2024), Nantes, France, July 2–5, 2024
Overmolding of 3D Skeleton Winding Structures: Process effects and challenges for process modeling
Dohmen, C.; Meyer, N.; Haas, J.; Beck, B.; Wittemann, F.; Kärger, L.
2024, July 5. 21st European Conference on Composite Materials (ECCM 2024), Nantes, France, July 2–5, 2024
Effects of varying fibre distribution in closed injection pultrusion modelling
Poppe, N.; Zeeb, G.; Wittemann, F.; Wilhelm, M.; Kärger, L.
2024, July 3. 21st European Conference on Composite Materials (ECCM 2024), Nantes, France, July 2–5, 2024
Interpolation of orthotropic fourth-order fiber orientation tensor fields in virtual composite process chains
Krauß, C.; Mitsch, J.; Kärger, L.
2024, June 3. 9th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2024), Lisbon, Portugal, June 3–7, 2024
2023
The influence of impact damage on the damping behavior of constrained layer damping laminates
Jackstadt, A.; Kärger, L.; Weidenmann, K. A.
2023, July 31. 23rd International Conference on Composite Materials (ICCM 2023), Belfast, United Kingdom, July 30–August 4, 2023
2022
Local and Global Influence of Second-Order Tensor Interpolation within Virtual Manufacturing Chains for Fiber-Reinforced Composites
Krauß, C.; Kärger, L.
2022, July 7. 11th European Solid Mechanics Conference (2022), Galway, Ireland, July 4–8, 2022
Investigation into the influence of the Mullins effect on the dynamic behavior of hybrid laminates
Jackstadt, A.; Frölich, F.; Liebig, W. V.; Kärger, L.; Weidenmann, K. A.
2022, July 7. 11th European Solid Mechanics Conference (2022), Galway, Ireland, July 4–8, 2022
Challenges in characterization of polylactic acid (PLA) for thermomechanical material modeling in material extrusion
Frölich, F.; Dörr, D.; Jackstadt, A.; Kärger, L.
2022, July 4. 11th European Solid Mechanics Conference (2022), Galway, Ireland, July 4–8, 2022
A Benchmark for Fluid-Structure-Interaction in Hybrid Manufacturing: Simulation with preCICE in OpenFOAM
Dietrich, S.; Seuffert, J.; Werner, H.; Meyer, N.; Poppe, C.; Krauß, C.; Kärger, L.
2022, June 9. 8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2022), Oslo, Norway, June 5–9, 2022
2021
A Benchmark for Fluid-Structure Interaction in Hybrid Manufacturing: Coupled Eulerian-Lagrangian Simulation
Meyer, N.; Werner, H. O.; Seuffert, J.; Dietrich, S.; Poppe, C.; Krauß, C.; Kärger, L.
2021, July 21. 5th International Conference on Hybrid Materials and Structures (2022), Leoben, Austria, July 20–22, 2022
Modeling and parameter identification for predicting the Mullins Effect of rubbers used in constrained-layer damping applications
Jackstadt, A.; Frölich, F.; Liebig, W. V.; Weidenmann, K. A.; Kärger, L.
2021, March 16. 91st Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2021), Kassel, Germany, March 15–19, 2021
2020
On the Influence of Tensor Interpolation Methods in Virtual Process Chains for Fiber-Reinforced Plastics
Krauß, C.; Kärger, L.
2020, September 1. 23rd / 6th Joint Event: International Conference on Composite Structures - International Conference on Mechanics of Composites (ICCS / MECHCOMP 2020), Porto, Portugal, September 1–4, 2020
Rapid Determination of Suitable Reinforcement Type in Continuous-Fibre-Reinforced Composites For Multiple Load Cases
Zimmerling, C.; Fengler, B.; Wen, H.; Fan, Z.; Kärger, L.
2020, September 1. 23rd / 6th Joint Event: International Conference on Composite Structures - International Conference on Mechanics of Composites (ICCS / MECHCOMP 2020), Porto, Portugal, September 1–4, 2020
2019
Direktgekühlter Elektromotor mit integralem Leichtbaugehäuse
Wittemann, F.; Kärger, L.; Henning, F.
2019, October 9. Fachtagung „Wärmeleitfähige Kunststoffe für das Thermomanagement“ (2019), Lüdenscheid, Germany, October 9, 2019
VMAP Use Case - Composites in Automotive Vehicles
Krauß, C.; Dörr, D.; Seuffert, J.; Bernath, A.; Galkin, S.; Kärger, L.
2019, June 20. NAFEMS World Congress (NWC 2019), Québec, Canada, June 17–20, 2020
Zeit- und kosteneffiziente Prozess und Produktentwicklung für den Hochleistungs-Faserverbundleichtbau unterstützt durch Techniken des Maschinellen Lernens
Zimmerling, C.; Kärger, L.; Carosella, S.; Middendorf, P.; Henning, F.
2019, May 20. 6. Technologietag Hybrider Leichtbau (2019), Leinfelden-Echterdingen, Germany, May 20–21, 2019
Injection Molding Simulation with Fiber Length Dependent Flow Modelling
Wittemann, F.; Kärger, L.; Henning, F.
2019, May 8. 12th International Conference on Composite Science and Technology (2019), Sorrento, Italy, May 8–10, 2019
A Multi-Layer Finite Shell Element based on the Generalized Unified Formulation for the Analysis of Hybrid Carbon Fiber Elastomer Metal Laminates
Jackstadt, A.; Liebig, W. V.; Kärger, L.
2019, May 8. 12th International Conference on Composite Science and Technology (2019), Sorrento, Italy, May 8–10, 2019
Process Simulation of Sheet Molding Compound (SMC) using Direct Bundle Simulation
Meyer, N.; Schöttl, L.; Bretz, L.; Hrymak, A.; Kärger, L.
2019, May 8. 12th International Conference on Composite Science and Technology (2019), Sorrento, Italy, May 8–10, 2019
Systematic approach for the development of an FE-based process simulation framework for wet compression moulding of continuously reinforced composites
Poppe, C.; Dörr, D.; Kärger, L.
2019, March 13. Colloquium 602 – Composite manufacturing processes. Analyses, modelling and simulations (2019), Lyon, France, March 13–15, 2019
Layerby- layer analysis of fiber orientation of formed continuously fiber-reinforced polymers based on computer tomographic (CT) scans
Dörr, D.; Schöttl, L.; Pinter, P.; Henning, F.; Kärger, L.
2019. Colloquium 602 – Composite manufacturing processes. Analyses, modelling and simulations (2019), Lyon, France, March 13–15, 2019
2018
Materialmodellierung zur Untersuchung des Schwingungs‐ und Dämpfungsverhaltens von hybriden CFK‐Elastomer‐Metall‐Laminaten
Jackstadt, A.; Liebig, W. V.; Sessner, V.; Weidenmann, K. A.; Kärger, L.
2018, November 16. Sitzung des DGM Fachausschusses Polymerwerkstoffe Themenschwerpunkt Simulation, numerische Methoden und Kennwertermittlung (2018), Kassel, Germany, November 15–16, 2018
A Multi-Scale Approach for the Virtual Characterization of Transversely Isotropic Viscoelastic Materials in the Frequency Domain
Jackstadt, A.; Liebig, W. V.; Galkin, S.; Sessner, V.; Weidenmann, K. A.; Kärger, L.
2018, October 9. 8th KMM-VIN Industrial Workshop: Modelling of composite materials and composite coatings (IW8 2018), Freiburg, Germany, October 9–10, 2018
A revisit of Jeffery‘s equation - modelling fiber suspensions with Smoothed Particle Hydrodynamics
Meyer, N.; Saburow, O.; Hohberg, M.; Hrymak, A.; Henning, F.; Kärger, L.
2018, September 27. Materials Science and Engineering Congress (MSE 2018), Darmstadt, Germany, September 26–28, 2018
Generation of Reliable Input Data for a Damage Model Taking Use of a Closed CAE-Chain Containing Material Interfaces
Krauß, C.; Galkin, S.; Kärger, L.
2018, July 27. 13th World Congress in Computational Mechanics (2018), New York, NY, USA, July 22–27, 2018
Simulation of Insert Deformations for Thermoset Materials
Wittemann, F.; Kärger, L.; Henning, F.
2018, June 5. 9. CONNECT! European Moldflow® User Conference (2018), Frankfurt am Main, Germany, June 5–6, 2018
Enhanced Viscosity Characterization for Fast Curing Epoxy Resins at Process Relevant Temperatures
Bernath, A.; Grulich, M.; Kärger, L.; Henning, F.
2018, May 31. 14th International Conference on Flow Processes in Composite Materials (2018), Luleå, Sweden, May 30–June 1, 2018
Simulation of Discontinuous Fiber Reinforced Composites along the CAE-Chain
Wittemann, F.; Hohberg, M.; Kärger, L.; Henning, F.
2018, March 7. MAHLE R&D Networking - High Performance Plastic (2018), Stuttgart, Germany, March 7–8, 2018
Vorstellung DEmiL – Direktgekühlter Elektromotor mit integralem Leichtbaugehäuse
Wittemann, F.; Kärger, L.; Henning, F.
2018, January 23. 20. Leichtbauforum des LBZ-BW e.V. (2018), Renningen, Germany, January 23, 2018
Thermomechanical analysis of thermoforming processes with continuously fibre-reinforced semi-crystalline thermoplastics
Dörr, D.; Joppich, T.; Kugele, D.; Henning, F.; Kärger, L.
2018. Materials Science and Engineering Congress (MSE 2018), Darmstadt, Germany, September 26–28, 2018
Integrated process simulation as enabler for efficient and robust design of composites and hybrids
Dörr, D.; Fengler, B.; Hohberg, M.; Kärger, L.; Henning, F.
2018. Fraunhofer Representative Office Korea 10th Anniversary Technology Seminar (2018), Seoul, South Korea, November 8, 2018
Advanced Macroscopic Modelling Approaches for FE Composite Forming Simulation Using Abaqus
Dörr, D.; Poppe, C.; Zimmerling, C.; Krauß, C.; Schäfer, B.; Henning, F.; Kärger, L.
2018. SIMULIA Regional User Meeting (2018), Hanau, Germany, December 4, 2018
Continuous Process Simulation for Continuous Fiber Reinforced Composites
Kärger, L.; Dörr, D.; Poppe, C.; Seuffert, J.; Bernath, A.; Galkin, S.; Zimmerling, C.; Henning, F.
2018. International VDI Conference - Simulation in Automotive Lightweight Engineering (2018), Amsterdam, Netherlands, April 25–26, 2018
2017
Zeit- und kosteneffiziente Prozess- und Produktentwicklung für den Hochleistungs-Faserverbundleichtbau mittels Nasspresstechnologie
Poppe, C.; Fial, J.; Kärger, L.; Carosella, S.; Albrecht, F.; Zimmerling, C.; Draskovic, M.; Engelfried, M.
2017, May 30. 4. Technologietag Hybrider Leichtbau (2017), Stuttgart, Germany, May 30–31, 2017
2016
Iterative determination of the tailoring of blanks for a waste-free composite forming by means of finite element forming simulation
Dörr, D.; Lipowsky, L.; Schirmaier, F.; Kärger, L.; Henning, F.
2016. International Conference on Automotive Composites (ICAutoC 2016), Lisbon, Portugal, September 21–23, 2016
Simulation methods for process design of structural composite components
Kärger, L.; Bernath, A.; Dörr, D.; Galkin, S.; Magagnato, D.; Schirmaier, F.; Henning, F.
2016. 1st Simpulsday greenCAE (2016), Weissach, Germany, November 10, 2016
2015
Methoden zur Umformsimulation von Endlosfaserverbunden mit ABAQUS
Dörr, D.; Schirmaier, F.; Joppich, T.; Fürst, T.; Kärger, L.; Henning, F.
2015. SIMULIA Regional User Meeting (2015), Aachen, Germany, November 12–13, 2015
Holistic Development of High-Pressure RTM Composite Structures
Henning, F.; Bernath, A.; Galkin, S.; Kärger, L.; Magagnato, D.; Schirmaier, F.; Thoma, B.
2015. 31st International Conference of the Polymer Processing Society (PPS 2015), Jeju Island, Korea, June 7–11, 2015
2014
An integrated development approach to combine design, manufacturing and validation of high-pressure RTM composite structures
Henning, F.; Bernath, A.; Chaudhari, R.; Kärger, L.; Magagnato, D.; Schirmaier, F.
2014. SAMPE Annual Tech Conference; 2.-5.06.2014, Seattle