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It is recognized that the stress-induced damage impacts the progressive failure behavior of rocks. A phenomenological model for the compressive failure of rocks is thus presented in this study. The model addresses the progressive growth of damage that leads to the strength weakening on a macroscopic scale. Considering dramatic difference between uniaxial compression and tension strengths for rocks,...
Damage evolution in quasi-brittle rocks is a complicated procedure in which both the post-peak strain-softening behavior and the immobile residual strength play key roles. The post-peak behavior observed from existing experiments is critical for the determination of the complete constitutive relation of quasi-brittle rocks. Based on the test observation on the post-peak immobile residual strength...
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