A Computational Framework via the Continuum Damage Mechanics Based Model for Brittle Damage, and Numerical Validation with Experiment

Abstract

The modeling of brittle damage are traditionally based on empirical functions. The empirical function models for the brittle damage lack a theoretical basis for the proof of the satisfication for Clausius-Duhem inequality, and it has diculty in incorporating with continuum mechanic based formulations from a computational perspective. Employing the Lemaitre continuum damage formulation approach, in this paper, we re-formulate the empirical function based brittle damage phenomenon into the continuum damage mechanics formulation to accurately model the mechanical behavior. The resulting formulation is validated with experimental results and achieve good agreement.