Inaccuracies in the computational procedures of acquiring composite laminate’s plastic deformation with the forward Euler algorithm

Several inaccuracies in one published paper about predicting laminate’s transverse impact nonlinear behaviors with an elasto-plastic damage model are presented. Plastic strain rates obeying the associative flow rule are suggested to be modified. Computational procedures concerning about the solution...

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Bibliographic Details
Published inComposite structures Vol. 184; pp. 1145 - 1146
Main Author Ren, Rui
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 15.01.2018
Subjects
Elasto-plastic damage
Inaccuracies
Plastic strain
Transverse impact
Transverse impact
Plastic strain
Elasto-plastic damage
Inaccuracies
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ISSN0263-8223
1879-1085
DOI10.1016/j.compstruct.2017.10.063

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Summary:Several inaccuracies in one published paper about predicting laminate’s transverse impact nonlinear behaviors with an elasto-plastic damage model are presented. Plastic strain rates obeying the associative flow rule are suggested to be modified. Computational procedures concerning about the solution of yielding function for updating plastic strain with the forward Euler algorithm are also reformulated. And possible explanations about reasonably updating the proportionality factor within the initial zero equivalent plastic strains are expected. This contribution aims at improving and completing the proposed computational procedures of predicting polymer based composite material’s plastic deformation with the forward Euler algorithm.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2017.10.063