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 language | English (US) |
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| Pages | 443-452 |
| Number of pages | 10 |
| State | Published - 1994 |
| Event | Proceedings of the 8th Technical Conference of the American Society for Composites (ASC) - Cleveland, OH, USA Duration: Oct 19 1993 → Oct 21 1993 |
Other
| Other | Proceedings of the 8th Technical Conference of the American Society for Composites (ASC) |
|---|---|
| City | Cleveland, OH, USA |
| Period | 10/19/93 → 10/21/93 |
All Science Journal Classification (ASJC) codes
- General Chemical Engineering
- Chemical Engineering (miscellaneous)
- Building and Construction
- Polymers and Plastics