Results 21 to 30 of about 2,122 (176)

Experimental Study on the Strength and Deformation Characteristics of Concrete under True Triaxial Compression after Sulfate Attack

open access: yesAdvances in Civil Engineering, 2021
To explore the mechanical properties of concrete under true triaxial static compressive load after sulfate attack, uniaxial static compression test and true triaxial static compression test at four stress ratios were carried out on concrete specimens ...
Wei Xia, Erlei Bai, Jinyu Xu, Gaojie Liu
doaj   +1 more source

A Three-Dimensional Constitutive Model for Rocks Based on a Strain-Dependent Elastic Modulus

open access: yesLithosphere, 2022
Our research group previously proposed a simple two-dimensional (2D) constitutive model for rocks to simulate not only the axial stress–axial strain relationship, but also the axial stress–lateral strain relationship, with few complicated equations ...
Z. Li   +5 more
doaj   +1 more source

Influences of True Triaxial Loading-Unloading Stress Paths on Mechanical Properties and Wave Velocity of Coal Samples subject to Risk of Rock Burst

open access: yesShock and Vibration, 2021
To study fracture evolution and peak stress in burst risk coal samples (BRCSs) under true triaxial loading and unloading conditions, experimental and numerical research was applied to BRCSs under true triaxial stress paths entailing “x-direction ...
Wei Shen   +4 more
doaj   +1 more source

Simulation of thermal creep under true triaxial conditions based on TTS constitutive model

open access: yesShenzhen Daxue xuebao. Ligong ban, 2023
Monotonic and cyclic thermal loading significantly affect the axial and radial deformation, and lateral pressure coefficient of soil under true triaxial conditions, which poses new challenges to the crack resistance, settlement control and bearing ...
LIU Ziqi, CHENG Xiaohui
doaj   +1 more source

A study on the influences of a hygrothermal environment on the compressive strength and failure criteria of asphalt mixtures based on true triaxial tests

open access: yesHeliyon, 2022
Based on a high-pressure servo static and dynamic true triaxial test machine (tawz-500/300), uniaxial and true triaxial tests of AC-25C asphalt mixtures under different heat moisture coupling treatments were performed, and the triaxial compressive ...
Pan Wang   +4 more
doaj   +1 more source

PERMEABILITY ANISOTROPY OF SHIRAHAMA SANDSTONE UNDER TRUE TRIAXIAL STRESSES

open access: yesDoboku Gakkai Ronbunshu, 2002
Anisotropic stresses may induce anisotropic permeability of rocks. The present study aims at establishing the relation between permeability tensor and principal stresses for Shirahama sandstone within the pre-yield range. The effects of three principal stresses on the permeability are experimentally investigated using a Mogi-type true triaxial ...
Xiaochun LI   +3 more
openaire   +2 more sources

Response of Castlegate sandstone to true triaxial states of stress [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2013
A suite of true triaxial tests were performed on Castlegate sandstone to assess the influence of the intermediate principal stress on mechanical response and failure. Five independent deviatoric stress states were employed, for which the intermediate principal stress ranged from equal to minimum compression (axisymmetric compression) to maximum ...
M. D. Ingraham   +2 more
openaire   +1 more source

Study on Failure Difference of Hard Rock Based on a Comparison Between the Conventional Triaxial Test and True Triaxial Test

open access: yesFrontiers in Earth Science, 2022
The study on the failure difference of deep hard rock based on the comparison between conventional and true triaxial tests can help us better understand the fracture processes and failure characteristics of the deep rock mass.
Guoqiang Zheng   +9 more
doaj   +1 more source

Study of the mechanical characteristics of coal-serial sandstone after high temperature treatment under true triaxial loading

open access: yesScientific Reports, 2023
In this study, a series of true triaxial loading tests were carried out on coal-measure sandstone after high temperature treatment by using a self-developed true triaxial test system combined with acoustic emission (AE) monitoring, and the mass loss ...
Shuai Wang   +5 more
doaj   +1 more source

Experimental Study on Damage Characteristics of Coal Samples under True Triaxial Loading and Dynamic Unloading

open access: yesLithosphere, 2022
Coal bursts are one of the formidable hazards in underground coal mines, yet it is still not fully explored due to the complex stress environment that exists during mining.
Anye Cao   +5 more
doaj   +1 more source

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