Modelling the interaction between matrix cracking and delamination in carbon–epoxy laminates under low velocity impact
作者： M.F.S.F de Moura , J.P.M Gonçalves
DOI: 10.1016/J.COMPSCITECH.2003.08.008
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摘要: Abstract The use of interface finite elements and a damage model are proposed to predict due low velocity impact in carbon–epoxy (0 4 , 90 ) s laminates. Experimentally, some tests were performed using drop weight testing machine characterisation was done X-rays. Impact-induced delamination matrix cracks found be the most detrimental modes laminated composites. numerical developed is based on an element compatible with three-dimensional solid elements, which allows between layers cracking inside layers. indirect fracture mechanics considering softening stress-relative displacements equation permits simulate initiation propagation avoiding definition initial flaws. progressive successfully simulated interaction crack bending delamination. Good agreement experimental analysis for shape, orientation size obtained.
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