On the modelling of low to medium velocity impact onto woven composite materials with a 2D semi-continuous approach
作者： F. Pascal , P. Navarro , S. Marguet , J-F. Ferrero
DOI: 10.1016/J.COMPSTRUCT.2015.08.067
关键词:
摘要: An explicit finite element modelling of the 5-harness satin woven composite material is proposed in this paper. It based on semi-continuous approach which consists separating fibre and matrix mechanical behaviours. The bundles are modelled with rod elements a specific damageable shell used to stabilize truss structure. As pattern geometry plays key role damage initiation propagation, modification has been made failure strain rods located at crimp regions where warp weft yarns cross each other. method implemented into code RADIOSS computation-ally efficient model low medium velocity impact (1-200 m/s) structure scale. strategy validated by representing drop weight test an oblique provides good prediction force history size location.
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