This study performed mechanical tests and monitored acoustic emissions (AE) in shale
samples with six bedding layer orientations (β= 0°, 30°, 60°, 90°, 120°, and 150°) to …

Research on the evaluation of microfractures in tight sandstone reservoirs is a frontier topic
worldwide. A marine tight sandstone reservoir is present in the Silurian strata in the northern …

As an anisotropic and jointed material, shale has been extensively investigated due to the
rich unconventional gas reserved in the shale rock mass. In the process of hydraulic …

The study of the construction of a micro-scale rupture parameter from the perspective of rock
stress and strain is a frontier in geoscience. The strain energy density (U) can quantitatively …

Geological exploration cores obtained from shale gas wells several kilometers deep often
show different height-diameter ratios (H/D) because of complex geological conditions (core …

This study investigates the stress-strain behavior, failure deformation, and change of gas
permeability in shale under compressive stress induced failure. The study is based on …

ABSTRACT A nonlinear variational auto‐encoder (NLVAE) is developed to reconstruct the
plane strain stress field in a solid with embedded cracks subjected to uniaxial tension …

Shale is composed of a rock matrix and bedding planes with a layered structure, resulting in
significant anisotropy in its mechanical properties. In order to study the anisotropic …

The response of tunnel excavations in blocky rock mass is dominated by the presence of
discontinuities. However, many of the studies reported in the literature consider these …

The stability of integration is essential to numerical simulations especially when solving
nonlinear problems. In this work, a continuum damage mechanics model proposed by the …