Abstract:Uniaxial compressive failure of brittle materials is modelled as buckling of microcracked solids undergoing damage. The brittle material is modelled as an isotropic linear elastic matrix containing a random distribution of non-interacting microcracks. Increasing the stress level, the material response evolves from isotropy at the natural state to orthotropy in damaged states. Furthermore, the overall stiffness decreases until a critical condition of equilibrium bifurcation may be reached. The related critical … Show more
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