A New Volumetric Strain-Based Method for Determining the Crack Initiation Threshold of Rocks Under Compression
Hao Li,
Ruizhi Zhong,
Leo Pel
et al.
Abstract:The crack initiation stress threshold ($${\sigma }_{\mathrm{ci}}$$
σ
ci
) is an essential parameter in the brittle failure process of rocks. In this paper, a volumetric strain response method (VSRM) is proposed to determine the $${\sigma }_{\mathrm{ci}}$$
σ
ci
based on two new concepts, i.e., the dilatancy resistance state index ($${\delta }_{\… Show more
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