Dynamic Mode II Fracture Characteristics and Shear Surface Morphology of Granite Under Triaxial Confining Pressure

Zhang, Chenxi; Li, Diyuan; Gong, Hao; Liu, Zida; Jabbar, Abdul; Zhou, Zijun; Yang, Bo

doi:10.1007/s00603-024-04017-y

Rock Mech Rock Eng

2024

DOI: 10.1007/s00603-024-04017-y

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Dynamic Mode II Fracture Characteristics and Shear Surface Morphology of Granite Under Triaxial Confining Pressure

Chenxi Zhang,

Diyuan Li,

Hao Gong

et al.

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Cited by 3 publications

References 70 publications

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Study on the Correlation Between Mechanical Behavior and Electric Potential Response of Flawed Coal Under Dynamic Load

Zang,

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Kong

et al. 2024

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Study on the Correlation Between Mechanical Behavior and Electric Potential Response of Flawed Coal Under Dynamic Load

Zang,

Li,

Kong

et al. 2024

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Subcritical crack growth in granite based on dissolution kinetics

Ma,

Li,

et al. 2024

Journal of Rock Mechanics and Geotechnical Engineering

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Mode II Fracture Properties and Microscopic Damage Characteristics of Granite Under Freeze–Thaw Cycles: Laboratory Testing

Liang,

2024

Fatigue Fract Eng Mat Struct

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Rock masses in alpine regions inevitably undergo freeze–thaw (F–T) cycles, which affects the safety of infrastructure such as slopes, with shear failure being a significant concern. This study investigates the Mode II fracture behavior of F–T treated granite via the short core in compression (SCC) test, analyzing the related physical properties and mechanical properties while also discussing F–T damage mechanism at a microscopic level. Results reveal that as F–T cycles increase, the dynamic elastic modulus and P‐wave velocity decrease, whereas porosity and backbone fractal dimension of pore scale increase, indicating a transition towards a large‐scale pore. Mode II fracture toughness decreased by 31.19% and fracture process zone width increased by 248.49% with F–T cycles rising from 0 to 80, and related fractal dimension of surface morphology also increased by 11.17%. Microscopic observation reveals the microstructure deterioration induced by F–T treatment, indicating the correlation between microscopic damage and macroscopic fracture properties.

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Dynamic Mode II Fracture Characteristics and Shear Surface Morphology of Granite Under Triaxial Confining Pressure

Cited by 3 publications

References 70 publications

Study on the Correlation Between Mechanical Behavior and Electric Potential Response of Flawed Coal Under Dynamic Load

Study on the Correlation Between Mechanical Behavior and Electric Potential Response of Flawed Coal Under Dynamic Load

Subcritical crack growth in granite based on dissolution kinetics

Mode II Fracture Properties and Microscopic Damage Characteristics of Granite Under Freeze–Thaw Cycles: Laboratory Testing

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