Woven fabrics composites - part II. Characterization of macro-crack initiation loads for global damage analysis

Jaehyon Choi, Kumar K. Tamma

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In Part 2, finite element techniques are developed to additionally investigate the global damage of woven fabric composites, focusing on plain weaves. The homogenized elastic properties of the original undamaged and the damaged woven fabric composites from the micromechanical homogenization and the micromechanical progressive damage analysis investigated earlier in Part 1 are subsequently employed in the present global damage analysis. The theory of continuum damage mechanics is utilized in the global damage analysis. The damage variables, the most important material properties of the continuum damage mechanics, are measures of average material degradation at a macro-mechanics scale. In the present study, these damage variables are calculated numerically using the results from the micromechanical damage analysis in Part 1, instead of being obtained experimentally. Subsequently, a finite element formulation for the global damage analysis of woven fabric composites is developed to predict the initiation loads of macro-cracks.

Original languageEnglish (US)
Pages (from-to)2299-2315
Number of pages17
JournalInternational Journal for Numerical Methods in Engineering
Volume50
Issue number10
DOIs
StatePublished - Apr 10 2001

Keywords

  • Global damage
  • Macro-crack initiation
  • Woven fabrics composites

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