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Conference
Open access
2026
Damage Evolution Under Cyclic Dynamic Loading in Rocks During Drilling
The damage evolution in rocks under cyclic dynamic loading is critical for optimizing percussive drilling operations in mining, oil and gas, and geothermal applications. This study investigates the progressive fatigue damage in granite, sandstone, and limestone subjected to repeated impact loading using a modified Spli...
O. Pashchenko, A. Shumov, M. Narbayev et al.
· E3S Web of Conferences · 0 citations
Open access
Aug 2026
Fracture Propagation and Fatigue Damage Evolution in Rocks Under Cyclic High-Pressure Gas Impacts
Cyclic high-pressure gas impact is a promising waterless stimulation method for enhancing permeability in deep low-permeability coal seams. However, the nonlinear fracture evolution, cumulative fatigue damage, and coupled fracturing mechanisms during repeated gas impacts remain insufficiently understood. In this study,...
Tao Yang, Shu-Chao Zhang, Xuyang Bai et al.
· Fractal and Fractional · 0 citations
Open access
Sep 2026
Cumulative dynamic damage evolution and differentiated blasting control in fractured hydrothermally altered rock masses
Fractured hydrothermally altered rock masses around roadway excavations are highly susceptible to repeated blasting disturbance, yet the transfer from specimen-scale cyclic degradation to engineering-scale contour deterioration remains insufficiently understood. To address this gap, this study establishes a cross-sca...
Yantian Yin, Haiwang Ye, Zhen Yang et al.
· Scientific Reports · 0 citations
Open access
Sep 2026
Study on the Dynamic Mechanical Properties and Constitutive Model of Magnetite Specimens under Impact Loading
Blasting operations during open-pit mining can cause cumulative degradation of slope stability, increasing the likelihood of slope failures. This study investigates the dynamic behaviour and crack-propagation characteristics of rock masses in steep open-pit slopes under impact loading. Magnetite specimens from an open-...
Qing-Fu Zeng, Jun-Hui Cai, Wan-Zhong Zhang et al.
· Archives of Mining Sciences · 0 citations
Conference
Open access
Sep 2026
Investigation of degradation characteristics of sandstone under cyclic loading based on crack initiation and damage stress thresholds
While conventional cyclic loading schemes typically rely on arbitrary fractions of peak strength, this study establishes loading bounds based on the crack-initiation (σci) and damage (σcd) stress thresholds. This physically based approach restricts the applied stress to the critical interval for stable micro-crack prop...
Sheng-Xiao Yuan, Qiang Wang, Guang-Dong Zhou et al.
· Journal of Physics, Conferen... · 0 citations
Open access
Oct 2026
Strain-rate effects and energy dissipation of frozen rocks under dynamic impact loading
To investigate the dynamic impact response of frozen rocks, this study performed dynamic compression tests on yellow sandstone, white sandstone, and granite under various low temperatures and impact intensities using a modified split Hopkinson pressure bar (SHPB) system, and analyzed the strength, deformation, and ener...
Ying Xu, Tian-Xiang Deng, Cheng-Jie Li et al.
· Journal of Vibroengineering · 0 citations