Abstract
With the focus on the failure of single-cracked rocks under compression–shear stress, the form and the critical conditions of crack initiation by adopting theoretical derivation and numerical exper...
Highlights
Discontinuous, inhomogeneous, anisotropic, brittleness, and non-elastic properties of the rock mass are the key factors contributing to the deformation and failure of the rock mass
It turns out that friction coefficient affects the critical conditions of crack growth, with higher value of friction coefficient entailing higher value of shear stress required for the generation of Mode II fracture at the tip of the crack
The upper tip of the crack gradually curves from the crack initiation angle to the shear direction and joins the shear fracture zone at the model boundary
Summary
Discontinuous, inhomogeneous, anisotropic, brittleness, and non-elastic properties of the rock mass are the key factors contributing to the deformation and failure of the rock mass. Keywords Compression–shear stress, crack initiation angle, fracture criterion, direct shear test, numerical experiment
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