Characterization of strain-induced damage in composites based on the dissipated energy density Part III. General material constitutive relation

Abstract

While the energy dissipation function can be approximately determined without explicit knowledge of the damage-induced constitutive nonlinearities as discussed in Parts I and II of this work, a more refined approximation requires a representation of the full-scale nonlinear behavior. This information is also of much interest in its own right since it is needed for stress analysis when analyzing the behavior of structural components loaded well into the nonlinear response range where substantial load redistribution is expected. Part III addresses a representation of the constitutive behavior in terms of the energy dissipation function that is developed with a more refined scheme for identifying the dissipation function itself.