Strengthening effect of cyclic load on siltstone and its macro–micro fracture mechanism
Yang Pengjin,
Miao Shengjun,
Wang Hui
et al.
Abstract:The purpose of this research is to study the strengthening effect of cyclic load on the weakly cemented rock and reveal its microscopic mechanism. In this study, a series of cyclic‐to‐monotonic loading tests with different cycle numbers were conducted on siltstone. Results show that the strengthening and weakening effects of siltstone under cyclic loading depend on the upper limit of cyclic load. The microfracture mode that was changed by cyclic load is the essential reason for the strengthening effect, accord… Show more
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