Abstract
The mechanical behavior and the strength characteristic of quasi-brittle inhomogeneous solids such as rock and concrete are strongly governed by the behavior and failure process, such as cracking within the microstructure involved in them. In order to predict such strength characteristic of the body containing a microstructure, utilizing the multiscale analysis method with micro-crack propagations, a numerical method for evaluation of macroscopic strength of cracked bodies is proposed. Numerical analysis of an uniaxial loading test show that the predicted strength agrees fairly well with that of experiments and demonstrates the performance of the proposed method for evaluating the strength of quasi-brittle solids.
