Abstract
Fracture behavior of brittle polycrystalline solids such as ceramic materials is closely related to microcracking. Continuum damage mechanics is considered as a powerful theoretical framework within which to deal with brittle microcracking solids. However, it is fairly difficult to obtain analytically as well as experimentally evolution equations for microcracking and reduced elastic compliances of microcracked solids. In the present study, a mesoscopic simulation method using a discontinuum mechanics model is employed to obtain this information. Based on the results of mesoscopic simulations, improved damage mechanics models assuming anisotropy as well as isotropy are proposed and applied to the finite element analysis of microcracking near the macrocrack-tip in a compressive stress field.
Published Version
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