Damage model for metal–matrix composite under high intensity loading

Abstract A damage model for a composite structure under high intensity dynamic loading is presented. The model is based on a thermodynamic micromechanic approach, which is formulated using the conservation laws and the energy balance equations (the first and second laws of thermodynamics). A homogenization or averaging technique is implemented in the development to simplify the representation of the non-homogeneous material. The metal–matrix composite's inelastic response is modeled using elastic–plastic constitutive relations considering finite plastic strain and damage effect. The damage model is validated with experimental data available in the literatures, and it shows fairly good agreement. A parametric study demonstrating the characteristics of the damage model is also presented.

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