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A true triaxial strength criterion for rocks by gene expression programming
Journal of Rock Mechanics and Geotechnical Engineering, 2023 Rock strength is a crucial factor to consider when designing and constructing underground projects. This study utilizes a gene expression programming (GEP) algorithm-based model to predict the true triaxial strength of rocks, taking into account the ...
Jian Zhou +3 more
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A nonlinear strength criterion for rock based on the peak value of deviatoric stress under conventional triaxial compression [PDF]
Scientific ReportsIn order to accurately evaluate the rock strength under different confining pressures, a new nonlinear strength criterion with three parameters is proposed based on the peak value of deviatoric stress.
Zhixiong Peng +3 more
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Meitan xuebao, 2023 To explore the hydraulic coupling characteristics of rocks, triaxial compression tests on water-saturated sandstone under hydro-mechanical coupling were carried out using the MTS815 rock mechanics test system. The test confining pressures were 10, 20, 30
Yanlin ZHAO +5 more
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Rock and Soil Mechanics, 2021 In order to investigate the mechanical properties of Zhanjiang structured clay in the three-dimensional stress state and the influence of structure on its strength criterion, a series of undrained true triaxial tests of different intermediate principal ...
LIU Bing-heng +3 more
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Analysis of Biaxial Mechanical Properties and Failure Criterion of Self-Compacting Concrete
Frontiers in Materials, 2021 Biaxial compression-compression, biaxial tension-compression and compression-shear tests were carried out on self-compacting concrete (SCC) using the rock true triaxial machine and compression-shear hydraulic servo machine to explore the biaxial ...
Jun Zhang +3 more
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Frontiers in Earth Science, 2022 To achieve versatility, a unified nonlinear strength (UNS) criterion is put forward for capturing the complicated strength behaviors exhibited by geomaterials under three dimensional (3D) stress paths.
Sui Wang +8 more
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Study of stability of flat panels made of hybrid materials with destroying composite layers [PDF]
Космические аппараты и технологииThe effect of collapsing layers in flat panels made of a hybrid material on the stability under compression and shear is analyzed. The hybrid material is formed from carbon fiber and fiberglass blocks.
Azikov N. S., Zinin A. V.
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Strength analysis of structural elements and metal-composite joints of a flying vehicle
Космические аппараты и технологии, 2020 The strength and load-bearing capacity analyses results for flying vehicle typical structural elements and joints are presented in the paper. Calculations were made with the use of nonlinear finite element method, implemented in software NASTRAN and ...
V. I. Grishin +4 more
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Soils and Foundations, 1980 ABSTRACT To investigate the strength characteristics of soft rocks, consolidated-drained triaxial compression tests were performed with mudstones, siltstones, tuff, weathered granite and so on. Maximum stress of applied confining pressure was about 30 MPa.
YOSHINAKA, RYUNOSHIN, YAMABE, TADASHI
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Strength criterion for frozen saline sand considering effects of loading rates
Yantu gongcheng xuebao, 2019 The external conditions such as confining pressures and loading rates have significant influences on the strength of frozen saline soil. A series of conventional triaxial compression tests under different loading rates are carried out for Delingha frozen
GAO Juan 1,2,3, LAI Yuan-ming 1,3, CHANG dan 4, NIU Ya-qiang 5
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