Micromechanics Modeling of Composites Subjected to Multiaxial Progressive Damage in the Constituents

uniaxial stress–strain response. Local final-failure criteria are also proposed based on mode-specific strain energy release rates and total dissipated strain energy. The coupled micromechanics-damage model described herein is applied to a unidirectional E-glass/epoxy composite and a proprietary polymer matrix composite. Results illustrate thecapabilityofthecoupledmodeltocapturethevastlydifferentcharacterofthemonolithic(neat)resinmatrixand the composite in response to far-field tension, compression, and shear loading.

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