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An efficient modelling of inelastic composites with misaligned short fibres

Abstract : This paper deals with the modelling of the behaviour of short-fibre reinforced composites. The composite is seen as an assembly of a matrix medium and of several fibre media. Each fibre medium, characterised by its own orientation of fibres and volume fraction, is considered as a one-dimensional elastic medium. The matrix material has an elastoplastic behaviour. All types of hardening laws can be considered, thanks to a valuable adaptivity of the modelling. The use of the Drucker-Prager criterion for plasticity and non-associative plasticity rules allow to deal with compressible plastic flow. Moreover, all kind of orientation of fibres, in particular random orientations and imperfect alignments, can be modelled in a simple way. The influence of the fibres' orientation on the mechanical response of a polymer matrix composite subjected to tensile/compression tests is analysed in detail. Finally, simulated behaviours of composites are compared to experimental data found in the literature
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Submitted on : Tuesday, April 26, 2022 - 8:14:18 AM
Last modification on : Tuesday, April 26, 2022 - 8:14:18 AM

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Delphine Notta-Cuvier, Franck Lauro, Bruno Bennani, Romain Balieu. An efficient modelling of inelastic composites with misaligned short fibres. International Journal of Solids and Structures, Elsevier, 2013, 50 (19), pp.2857-2871. ⟨10.1016/j.ijsolstr.2013.04.031⟩. ⟨hal-03624280⟩

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