Dr.-Ing. Bastian Schäfer
- Scientific Researcher
- User-Element development for forming simulations
- Research Group:
Umform- und Struktursimulation
- Room: 122
CO 70.04 - bastian schaefer ∂ kit edu
Institut für Fahrzeugsystemtechnik
Institutsteil für Leichtbau
Rintheimer Querallee 2, Geb. 70.04
76131 Karlsruhe
Research Focus
- Forming Simulation of continuous-fibre reinforced composite components
- Development of a 3D-Solid-Shell-User-Element for describing the compaction behaviour during forming
Publications
2024
PhD Theses
Macroscopic forming simulation of unidirectional non-crimp fabrics: Hyperelastic material modeling and 3D-solid-shell approach. PhD dissertation
Schäfer, B. B. J.
2024, May 27. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000170739
Schäfer, B. B. J.
2024, May 27. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000170739
Journal Articles
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
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
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
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
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
Conference Papers
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
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
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
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
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
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
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
Reports/Preprints
Composite forming simulation for non-crimp fabrics based on generalized continuum approaches – AMECOMP : Abschlussbericht / Final project report (DFG 431354059 / ANR-19-CE06-0031)
Schäfer, B.; Kärger, L.; Naouar, N.; Zheng, R.
2024. Technische Informationsbibliothek Hannover. doi:10.34657/13755
Schäfer, B.; Kärger, L.; Naouar, N.; Zheng, R.
2024. Technische Informationsbibliothek Hannover. doi:10.34657/13755
Presentations
Makroskopische Umformsimulation von unidirektionalen Kohlenstofffasergelegen: Hyperelastische Materialmodellierung und 3D-Solid-Shell-Ansatz
Schäfer, B.
2024, November 6. 10. Technologietag Leichtbau (2024), Stuttgart, Germany, November 6, 2024
Schäfer, B.
2024, November 6. 10. Technologietag Leichtbau (2024), Stuttgart, Germany, November 6, 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
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
Research Data
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
Schäfer, B.; Zheng, R.; Colmars, J.; Platzer, A.; Naouar, N.; Kärger, L.
2024, June 24. doi:10.5281/zenodo.12516897
2023
Journal Articles
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
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
Conference Papers
A unit-cell mesoscale modelling of biaxial non-crimp-fabric based on a hyperelastic approach
Zheng, R.; Schäfer, B.; Platzer, A.; Colmars, J.; Naim, N.; Boisse, P.
2023. Material Forming. Ed.: L. Madej, 285–292, Materials Research Forum LLC. doi:10.21741/9781644902479-31
Zheng, R.; Schäfer, B.; Platzer, A.; Colmars, J.; Naim, N.; Boisse, P.
2023. Material Forming. Ed.: L. Madej, 285–292, Materials Research Forum LLC. doi:10.21741/9781644902479-31
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
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
Journal Articles
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
Schäfer, B.; Haas, S.; Boisse, P.; Kärger, L.
2022. Key Engineering Materials, 926, 1413–1422. doi:10.4028/p-2977b4
2021
Conference Papers
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
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
Schäfer, B.; Dörr, D.; Kärger, L.
2021. ESAFORM 2021 - 24th International Conference on Material Forming, ULiège Library. doi:10.25518/esaform21.883
2020
Journal Articles
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
Schäfer, B.; Dörr, D.; Kärger, L.
2020. Procedia manufacturing, 47, 134–139. doi:10.1016/j.promfg.2020.04.154
2019
Journal Articles
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
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
2018
Presentations
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
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