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Material modelling of fabric deformation in forming simulation of fiber-metal laminates - A review on modelling fabric coupling mechanisms

Werner, Henrik O.; Schäfer, Florian; Henning, Frank; Kärger, Luise


During forming of complex fiber-metal laminates (FML), compressive stress zones occur. In pure textile forming, these compressive stresses typically lead to extensive wrinkling. In FML forming, however, wrinkling is partly hindered by the metal layers. Thus, combined stress states occur, where compression influences the deformation. In forming simulation, these compressive stresses can lead to erroneous formation of shear bands within the fabric layer, if the deformation behavior is not modelled correctly. Simple fabric models neither consider interactions between roving directions nor model interactions between membrane strains and shear strains. More advanced invariant-based hyperelastic material models are able to capture these interactions, but only consider tension and shear, while disregarding compression. A common assumption is to set the fabric compression stiffness close to zero. Experimentally, the in-plane fabric compression stiffness has not been determined so far. However, in FML forming, the compression stiffness and the combined compressiontension- shear behavior becomes relevant. In this article, the authors summarize and analyze the capacity of state-of-the-art fabric material models to predict the deformation behavior of fabrics under combined loading. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000140761
Veröffentlicht am 06.12.2021
DOI: 10.25518/esaform21.2056
Zitationen: 6
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Fahrzeugsystemtechnik (FAST)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2021
Sprache Englisch
Identifikator ISBN: 978-2-87019-302-0
KITopen-ID: 1000140761
Erschienen in ESAFORM 2021: 24th International Conference on Material Forming, 14-16 April, online
Veranstaltung 24th International Conference on Material Forming (ESAFORM 2021), Online, 14.04.2021 – 16.04.2021
Verlag Université de Liège
Seiten Art.-Nr.: 2056
Schlagwörter Fabric Forming, Fabric Behavior, Fabric Material Modelling, FE-Forming Simulation, Fiber-metal Laminates, FML, Hybrid, Deep Drawing
Nachgewiesen in Dimensions
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