Abstract

The initial fracture (damage) process in brittle solids subject to uniform uniaxial or biaxial compression may be simulated by a system of non-self-similarly propagating internal (three-dimensional) 3D ellipsoidal voids. The variations of effective elastic material properties with propagating ellipsoidal voids may thus be estimated. Although both assumptions and approximations are introduced, the estimated effective elastic material properties indicate the general trend of the overall non-linear anisotropic response of a cracking solid. This proposal seems to provide a better understanding of the non-local damage process of a brittle solid fracturing in compression.

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