Damage model for the failure analysis of laminated composites under general loading condition

Research output: Contribution to conferencePaper

Abstract

Numerical procedures for the post-damage analysis of laminated composites are presented using a three-dimensional nonlinear finite element method. A new damage model which decouples the material response tensor into deviatoric and volumetric parts is proposed for general loading conditions. The damage factors are assigned to deviatoric and volumetric material response tensors separately, such that the volumetric rigidity of the structure can still be maintained under compressive failure. Hashin's failure criteria, which identifies different failure modes based on the current stress state is well suited for this analysis. In this study, failure analyses of a laminated composite strip under tensile loading and three-point bending are studied in detail and the results are compared against experimental failure loads. The compression test is also analyzed to compare the structural rigidity after compressive failure using different decoupling schemes in the damage model.

Original languageEnglish (US)
Pages443-452
Number of pages10
StatePublished - Jan 1 1994
EventProceedings of the 8th Technical Conference of the American Society for Composites (ASC) - Cleveland, OH, USA
Duration: Oct 19 1993Oct 21 1993

Other

OtherProceedings of the 8th Technical Conference of the American Society for Composites (ASC)
CityCleveland, OH, USA
Period10/19/9310/21/93

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemical Engineering (miscellaneous)
  • Building and Construction
  • Polymers and Plastics

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    Chen, J. S., & Satyamurthy, K. (1994). Damage model for the failure analysis of laminated composites under general loading condition. 443-452. Paper presented at Proceedings of the 8th Technical Conference of the American Society for Composites (ASC), Cleveland, OH, USA, .