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The Fracture Characteristic of Three Collinear Cracks under True Triaxial Compression [PDF]

open access: yesThe Scientific World Journal, 2014
The mechanical behavior of multicracks under compression has become a very important project in the field of fracture mechanics and rock mechanics. In this paper, experimental and numerical studies on the fracture property of three collinear cracks under
Jianjun Liu, Zheming Zhu, Bo Wang
doaj   +6 more sources

Calculation method and evolution rule of the strain energy density of sandstone under true triaxial compression [PDF]

open access: yesScientific Reports
Deep rock masses are typically in complex stress states, and research on the evolution of their strain energy density is of highly important for understanding their failure characteristics.
Liu Zhixi   +3 more
doaj   +2 more sources

Strength behavior of plain cement concrete subjected to true triaxial compression [PDF]

open access: yesCanadian Journal of Civil Engineering, 2018
True triaxial compression test was conducted on 100 mm × 100 mm × 100 mm cubical sample of plain cement concrete using the true triaxial testing machine. A total of 30 tests were conducted on two concrete mixes having characteristic strengths of 24.39 MPa and 34.67 MPa.
Saurav Rukhaiyar   +1 more
exaly   +2 more sources

Influence of end effect on rock strength in true triaxial compression test [PDF]

open access: yesCanadian Geotechnical Journal, 2017
The influence of the end effect on rock strength in true triaxial compression testing was studied using a numerical approach. The influence of the intermediate principal stress (σ2) on rock strength was isolated by using the two-dimensional Mohr–Coulomb failure criterion that depends only on the major principal stress (σ1) and minor principal stress ...
Ming Cai
exaly   +2 more sources

Deformation, fracture characteristics and damage constitutive model of soft coal under true triaxial complex stress paths. [PDF]

open access: yesPLoS ONE
Understanding the mechanical properties and damage deterioration mechanisms of soft coal under true triaxial complex stress paths is crucial for predicting and evaluating the stability of the roof during roadway excavation in thick soft coal seams.
Chongyang Jiang   +3 more
doaj   +2 more sources

Strength of artificially frozen sand with low confining pressure under a three-dimensional stress path [PDF]

open access: yesScientific Reports
True triaxial tests were conducted on artificially frozen sand. The effects of the intermediate principal stress coefficient, temperature and confining pressure on the strength of frozen sand were studied. The stress–strain curves under different initial
Zhaoming Yao, Xinjie Xu, Shuang Liu
doaj   +2 more sources

Experimental and numerical study on dynamic mechanical behaviors of shale under true triaxial compression at high strain rate

open access: yesInternational Journal of Mining Science and Technology
High-energy gas fracturing of shale is a novel, high efficacy and eco-friendly mining technique, which is a typical dynamic perturbing behavior. To effectively extract shale gas, it is important to understand the dynamic mechanical properties of shale ...
Xiaoping Zhou   +3 more
doaj   +3 more sources

Anisotropic strength, deformation and failure of gneiss granite under high stress and temperature coupled true triaxial compression

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
The anisotropic mechanical behavior of rocks under high-stress and high-temperature coupled conditions is crucial for analyzing the stability of surrounding rocks in deep underground engineering. This paper is devoted to studying the anisotropic strength,
Hongyuan Zhou   +4 more
doaj   +3 more sources

Experimental study on strength and failure characteristics of mortar specimens with prefabricated cracks under uniaxial and triaxial stress

open access: yesFrontiers in Materials, 2023
Cracks in rock masses have adverse effects on their mechanical characteristics and the stability of rock mass engineering. For this experiment, uniaxial compression and true triaxial compression unloading tests were conducted on mortar specimens.
Xuwei Pan   +4 more
doaj   +1 more source

Experimental study on failure evolution mechanism of clastic rock considering cementation and intermediate principal stress

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
The study of clastic rock failure evolution under true triaxial stress is an important research topic; however, it is rarely studied systematically due to the limitation of monitoring technology.
Feiyan Wang   +3 more
doaj   +1 more source

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