Acoustic Emission and Mechanical Characteristics of Rock-Like Material Containing Single Crack Under Uniaxial Compression

Li, Kesheng; Zhao, Zengdian; Ma, Depeng; Liu, Chuanxiao; Zhang, Jinpeng

doi:10.1007/s13369-021-06251-w

Cited by 12 publications

(7 citation statements)

References 14 publications

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“…The results revealed the relationship between mechanical parameters and crack dip angles. [20][21][22][23] Furthermore, numerical simulations were conducted to determine the mechanical parameters and failure mode of rock specimens with preexisting closed cracks of different sizes, contributing to the ongoing development of numerical experiments. 24,25 Numerous studies have been conducted on the failure process of intact rocks under uniaxial and triaxial compression, as well as the mechanical mechanism of fractured rocks under uniaxial compression.…”

Section: (A) (B)mentioning

confidence: 99%

“…This study investigated the mechanical properties of rocks with varying crack lengths and dip angles through indoor uniaxial compression tests. The results revealed the relationship between mechanical parameters and crack dip angles 20–23 . Furthermore, numerical simulations were conducted to determine the mechanical parameters and failure mode of rock specimens with preexisting closed cracks of different sizes, contributing to the ongoing development of numerical experiments 24,25 …”

Section: Introductionmentioning

confidence: 99%

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Study on mechanical properties and fracture modes of sandstone with cracks under triaxial compression

Liu

Wang³

2023

Engineering Reports

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This study examines the mechanical properties and fracture modes of sandstone with single and double cracks under varying confining pressures through triaxial compression tests. The stress–strain curves, mechanical parameters, and fracture modes of both intact and cracked sandstone are analyzed based on experimental results. The study finds that the presence of cracks has a significant impact on the mechanical properties of sandstone, with greater damage observed with an increase in the number of cracks. The peak strength and strain of a cracked rock sample increase with the increase in crack angle. The fracture mode of sandstone is influenced by both crack angle and confining pressure. When the crack angle is small, the fracture mode is a combination of shear and tensile failure, while a large crack angle results in shear failure. Moreover, as the confining pressure increases, the degree of damage to the sandstone also increases.

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Section: (A) (B)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on mechanical properties and fracture modes of sandstone with cracks under triaxial compression

Liu

Wang³

2023

Engineering Reports

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“…Acoustic emission technology is a widely used non-destructive testing technique in the area of rock exploration. Liu et al [ 7 ] conducted uniaxial compression and Brazil splitting tests on coal rock. The deformation and rupture properties of the carbon rock under tensile and compressive loads, the spatio-temporal progression law of AE, and the microscopic rupture mechanism were compared and studied.…”

Section: Introductionmentioning

confidence: 99%

Study on mechanical properties and acoustic emission characteristics of deep diorite under uniaxial compression

Liu,

Zhou,

Zhang

et al. 2024

Heliyon

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“…Jia [20] investigated the initiation and propagation of embedded three-dimensional parallel cracks in transparent rock-like material. Li [21] investigated the acoustic emission and mechanical characteristics of rock-like material containing a single crack. Meng [22] carried out experimental and numerical studies on the anisotropic mechanical characteristics of rock-like material.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Sandstone-like Material for Damaged Rock Mass Based on Orthogonal Experimental Method

Wang,

Xie,

Song

et al. 2024

Buildings

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The investigation of the mechanical properties of rock mass can be effectively carried out through rock-like material experiments. In this study, polystyrene foam particles were utilized as a novel material for simulating initial damage within rocks. Our research involved the development of sandstone-like materials with comparable mechanical properties to actual sandstone. These materials were then subjected to orthogonal mechanical tests, allowing us to identify the key factors that have a substantial impact on the mechanical parameters of sandstone-like rocks. The influencing factors considered in the orthogonal mechanical tests were the proportion of aggregate and binder, the proportion of polystyrene foam in the entire model, the proportion of binder and regulator, and the size of polystyrene foam. Five levels were set for each factor, and mechanical parameters such as compressive strength, tensile strength, elastic modulus, axial strain, and Poisson’s ratio were tested for each group of samples. The changes in mechanical parameters with the levels of the above four factors were studied. The study found that modifying the proportion of aggregate to binder can alter the elastic modulus, tensile strength, and compressive strength values of sandstone-like material. The size of polystyrene foam can be modified to alter the axial strain values of sandstone-like materials. Additionally, adjusting the ratio of binder and regulator can modify the value of Poisson’s ratio. The comparison of mechanical parameters between sandstone-like samples and sandstone reveals that sandstone-like materials can better simulate the deformation and failure mechanisms of sandstone. The error in the main mechanical parameters, such as modulus of elasticity, strength, and Poisson’s ratio, is less than 7%, indicating a greater resemblance between sandstone-like materials and sandstone. Therefore, sandstone-like materials can be used to investigate the deformation law, damage evolution law, and failure mechanism of sandstone. This can help alleviate the difficulty of obtaining specimens of deep damaged rock and the high cost of testing.

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Acoustic Emission and Mechanical Characteristics of Rock-Like Material Containing Single Crack Under Uniaxial Compression

Cited by 12 publications

References 14 publications

Study on mechanical properties and fracture modes of sandstone with cracks under triaxial compression

Study on mechanical properties and fracture modes of sandstone with cracks under triaxial compression

Study on mechanical properties and acoustic emission characteristics of deep diorite under uniaxial compression

Investigation of Sandstone-like Material for Damaged Rock Mass Based on Orthogonal Experimental Method

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