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Study on Elastoplastic Damage Constitutive Model and Permeability Evolution Law of Gas-Bearing Coal
Original coal reservoir contains massive free and adsorbed methane, that directly affects the mechanical properties and permeability of coal with its...
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Multi-stepped creep constitutive model based on asymptotic damage evolution behavior of sandstone
Under prolonged stress conditions, the tunnel surrounding rock produces a time-varying mechanical response, which poses a serious threat to the life...
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Study on Creep Characteristics and Nonlinear Fractional-Order Damage Constitutive Model of Weakly Cemented Soft Rock
Weakly cemented soft rock (WCSR) strata are widespread in Western China, and their creep characteristics with geo-stress change significantly affect...
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A new layered rock constitutive model incorporating confining pressure and bedding angle weights based on orthogonal matrix analysis
Under the combined influences of confining pressure, lithology and bedding, the deformation and failure characteristics of layered rocks become more...
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Damage characteristics and new constitutive model of sandstone under wet-dry cycles
The mechanical properties of rock deteriorate under repeated wet-dry (WD) cycles, causing the deformation and failure of the rock mass. A reasonable...
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Strain Rate Effect and Mechanical Constitutive Model of Coal Samples Under Dynamic Load
The failure characteristics and mechanism of coal under dynamic and static loading are a basic problem for studying the mechanism of rock burst. It...
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Electric Potential Response Characteristics and Constitutive Model of Coal Under Axial Static Load–Dynamic Load Coupling
The electrical and magnetic signals generated by coal fracture can expose the mechanical properties and fracture behavior of coal, which are of great...
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Constitutive Model and Microscopic Mechanism for Sandstone Strength Softening Damage
It is of great practical significance to study the microscopic mechanisms and strength damage laws of deep rock masses under the coupling action of...
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A Statistical Anisotropic Damage Constitutive Model for Shale Including the Effects of Confining Pressure and Strain Rate
Confining pressure, strain rate and anisotropy are three essential factors that affect the mechanical behaviors of shale. In this study, a damage...
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New approach for predicting time-dependent deformation of shale rock: a modified fractional-order creep constitutive model
Time-dependent deformation is critical for ensuring safety and efficiency in horizontal well stability and the long-term permeability of shale gas....
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The nonlinear creep behavior and creep damage constitutive model of coal rock
The creep behavior of coal rock is one of the most important factors which impacts on the stability of coal mine. In this study, the raw coal blocks...
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Mechanical behaviors and damage constitutive model of pre-damaged and saturated granites under uniaxial compression
Excavation disturbance and groundwater actions can lead to initial damage in granites, posing a long-term stability threat to underground structures....
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Damage constitutive model considering nonlinear fracture closure of rock under freezing–thawing cycles
It is difficult to reflect the nonlinear characteristics of rock compaction by directly applying the damage statistical distribution of rock...
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Calibration Method and Material Constants of an Anisotropic, Linearly Elastic and Perfectly Plastic Mohr–Coulomb Constitutive Model for Opalinus Clay
Nagra, the cooperative for develo** and implementing a long-term radioactive waste depository in Switzerland, identified Opalinus Clay as the most...
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Constitutive Model for Thermal Compaction of Clayey Geomaterials and Application to COx Claystone
Clay formations present very favourable conditions for the long-term containment of radioactive waste due to their low hydraulic conductivity, high...
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Dynamic constitutive theory of shale and numerical solution
Due to the fact that traditional rock constitutive models are constructed under static loading conditions and cannot accurately describe the...
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Damage constitutive model for soft rocks and its experimental verification on silty mudstone considering cyclic rock‒water interactions
Understanding the damage behaviors and mechanisms of soft rocks affected by rock‒water interactions is crucial for designing civil engineering...
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A critical-state constitutive model for considering the anisotropy in sandy slopes
In this paper, a novel approach that associates the behavior of granular material with the void space and plastic deformations is applied to evaluate...
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Damage characteristics analysis and constitutive model establishment for deep rock considering pre-static loads and frequent dynamic disturbance
In order to characterize the mechanical behaviors of deep rock mass in complex geological environments, a statistical damage constitutive model was...
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Macroscopic experimental and constitutive model research on tensile properties of sandstone after high-temperature treatment
The physical and mechanical properties of the surrounding rock on the geothermal wellbore will be deteriorated by high temperature, resulting in...
