Results 1 to 10 of about 670,121 (313)
Meitan kexue jishu, 2023 With the continuous increase of coal mining depth, the response of coal mechanics and the mechanism of gas migration have become extremely complicated. In order to explore the coal damage evolution and gas seepage mechanism under the integrated operation
Jiale FU +5 more
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Creep property and damage constitutive model of dioritic porphyrite under cyclic loading-unloading
工程科学学报, 2022 The hierarchical loading compression creep test fails to fully consider the viscoplastic strain in a stable creep. Thus, the triaxial cyclic loading compression creep test is adopted to realize the separation of viscoelastic and viscoplastic strain to ...
Zhen LIU +3 more
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Reviews on Advanced Materials Science, 2021 Computed tomography (CT) scanning technology is helpful in investigating rock materials as it can demonstrate the micro structure of rock clearly. Conventional triaxial compression tests and the corresponding graded triaxial loading tests were carried ...
Yan-Shuang Yang +6 more
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A statistical damage constitutive rock model based on elastic energy release rate
Shuiwen dizhi gongcheng dizhi, 2021 In order to truly reveal the mechanism of rock deformation and failure and the nature of rock material damage, based on the analysis of rock material deformation law and mechanical characteristics, a rock damage constitutive model based on elastic energy
Wenbo LIU +3 more
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Study on Energy Evolution and Damage Constitutive Model of Siltstone
Crystals, 2021 In order to study the energy evolution characteristics and damage constitutive relationship of siltstone, the conventional triaxial compression tests of siltstone under different confining pressures are performed, and the evolution laws of input energy ...
Ruihe Zhou, Longhui Guo, Rongbao Hong
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Method of defining rock damage variable on the basis of wave impedance
Energy Science & Engineering, 2023 A method of determining rock damage variable from wave impedance, which is suitable for the study of dynamics, is presented. The determined variable provides a more reasonable quantitative description of the degree of rock damage. First, the Taylor model
Weiyu Li +3 more
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Meitan kexue jishu, 2023 Coal rock dynamic disasters such as rockburst and gas outbursts pose severe threats to the safe and efficient mining of coal mines in China; however, the mechanical mechanisms of those disasters are still unknown.
Liang ZHANG +7 more
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Applied Sciences, 2019 Polyurethane cement (PUC) is a kind of high-strength composite bending and strengthening material that is made by adding an appropriate amount of super fine aggregate, such as cement, into the polyurethane matrix.
Nan Yang, Quansheng Sun
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Influence of Crack Geometry on Dynamic Damage of Cracked Rock: Crack Number and Filling Material
Applied Sciences, 2020 The dynamic damage of cracked rock threatens the stability of rock structures in rock engineering applications such as underground excavation, mineral exploration and rock slopes.
Feili Wang, Shuhong Wang, Zhanguo Xiu
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Numerical Simulation and Evaluation on Continuum Damage Models of Rocks
Energies, 2022 Damage mechanics play an important role in the analysis of rock deformation and failure. Numerous damage variables have been proposed and the corresponding continuum damage models were suggested.
Leilei Zhao +3 more
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