Abstract
This paper presents a modelling approach for mechanical behaviour of textile reinforcements, based on Nottingham’s TexGen textile modelling schema. TexGen allows models to be generated easily for any textile reinforcement, and has automated functions to discretise the model, assign material orientations and properties to elements, and export the model to external analysis software. In this study Abaqus FE software is used, incorporating a transversely isotropic material law with non-linear transverse mechanical properties determined from experimental characterisation of yarn compression. This is validated firstly for discrete load-cases, including compaction and in-plane shear. The approach is then applied to simulate combinations of these loadings to represent important interactions that can occur during fabric forming. For example, compaction combined with shear is modelled to represent the effect of tool normal force on deformation. Combined tension and shear, which can arise due to the use of a blank-holder during forming, can also be analysed. It is hoped that results will assist in understanding of experimental data that is beginning to be generated on combined loadings.
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References
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Lin, H., Long, A., Sherburn, M. et al. Modelling of mechanical behaviour for woven fabrics under combined loading. Int J Mater Form 1 (Suppl 1), 899–902 (2008). https://doi.org/10.1007/s12289-008-0241-7
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DOI: https://doi.org/10.1007/s12289-008-0241-7