The fracture toughness of rocks is a critical fracturing parameter in geo-energy exploitation
playing a significant role in fracture mechanics and hydraulic fracturing. The edge-notched …

The dynamic mode I fracture behaviors of rocks have been extensively investigated during
recent decades, while the dynamic mode II fracture mechanism of rocks and its comparison …

Experimental and theoretical analyses are presented that assess true mode II fracture
toughness, K IIc, fracture energy, G IIc, and associated fracture process zone (FPZ) in …

The study on shear fracture behaviour at elevated confining pressure is very meaningful for
a lot of practical activities in underground works. To understand the influence of confining …

The fracture toughness of rocks is a crucial fracture parameter in unconventional geo-energy
exploitation and plays a significant role in the fields of fracture mechanics and hydraulic …

The investigation on dynamic shear fracture behaviour of rocks subjected to the simulated
geo-stress is of great importance for deep rock engineering. Four groups of dynamic mode II …

Rock failure under tensile loading conditions is significant for rock engineering stability and
underground energy development. However, a comprehensive understanding of the rock …

A new test, referred to as axially double-edge notched Brazilian disk (ANBD), is proposed to
measure true mode III fracture toughness (K IIIc) of rock materials. The term true denotes a …

In the present study, a strain-based approach called the modified maximum tangential strain
criterion has been developed for evaluating size effect on the mixed-mode fracture …

The weight function method was employed to derive the closed-form solutions of stress
intensity factors (SIFs) for double-edge cracked Brazilian disk (DECBD) specimens …