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Assessment of Tensorial and Scalar Damage Models for an Isotropic Thermally Cracked Rock Under Confining Pressure Using Experimental Data: Continuum Damage Mechanics Versus Effective Medium Theory
Many models of damage or cracking of isotropic solids consider a single damage/crack density variable. Based on both continuum damage mechanics (CDM)...
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Poromechanics of Fractured/Faulted Reservoirs During Fluid Injection Based on Continuum Damage Modeling and Machine Learning
The reactivation of faults is governed by the variation of effective stresses in the fault’s plane. These effective stresses are dependent on the...
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Investigation of the mechanical behavior and continuum damage model of sandstone after freezing–thawing cycle action under different immersion conditions
This study systematically investigated the influence of freezing–thawing (F-T) cycles on the physical and mechanical properties by using scanning...
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A Microplane-Based Anisotropic Damage Model for Deformation and Fracturing of Brittle Rocks
Anisotropy is an important property that is widely present in crustal rocks. Efforts have been devoted to providing a constitutive model that can...
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Effective Elastic Properties and Micro-mechanical Damage Evolution of Composite Granular Rocks: Insights from Particulate Discrete Element Modelling
The mechanical behavior of composite granular rocks is a multifaceted phenomenon with broad relevance in various geomechanical applications....
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An Original Coupled Damage–Permeability Model Based on the Elastoplastic Mechanics in Coal
Coal and gas outburst have always been one of the principal gas energy disasters in coal mines. Pre-extraction of coal-bed methane (CBM) is an...
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Thermodynamic Characterization of Chemical Damage in Variably Saturated Water-Active Shales
A constitutive framework is developed for variably saturated water-active swelling rocks undergoing chemical damage using modified mixture theory and...
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A three-dimensional nonlinear rock damage creep model with double damage factors and residual strength
Creep failure behavior of rock is the focus of research on rock rheology and affects the stability and safety of slopes and underground structure....
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A Continuous Damage Statistical Constitutive Model for Sandstone and Mudstone Based on Triaxial Compression Tests
The failure and deformation mechanism of sandstone and mudstone has always been highlighted in research on mining engineering. To further investigate...
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A Regularised Anisotropic Elastoplastic Damage and Viscoplastic Model and Its Hydromechanical Application to a Meuse/Haute-Marne URL Drift
Clay formations are one of the options currently being considered for the storage of radioactive wastes worldwide. In France, the National...
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A smooth particle dynamics method considering material point failure for crack propagation simulation applied in rock mechanics
Numerical simulation of rock fracture mechanics has been a major research interest and challenging area in the field of rock mechanics. Based on this...
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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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Modeling Three-Dimensional Pattern of Fluid-Driven Fracturing Using a Simplified Flow-Mechanical Damage Model
The complex geological and formation characteristics such as in-situ stress, nonlinearity, and rock discontinuities make three-dimensional hydraulic...
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Finite Element Algorithm for Continuum Damage Evolution of Rock Considering Hydro-Mechanical Coupling
In this chapter, the finite element algorithm for continuum damage evolution of rocks, considering hydro-mechanical coupling, is introduced.
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A Pre-peak Elastoplastic Damage Model of Gosford Sandstone Based on Acoustic Emission and Ultrasonic Wave Measurement
The determination of internal material damage is always an arduous challenge. Non-destructive monitoring methods show great potential in...
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Simulation of Brittle Failure Around Canada’s Mine-By Experiment Tunnel Using 2D Continuum-Based Voronoi Tessellated Models
The failure process of brittle rocks under compression involves the initiation, accumulation and propagation of tensile fractures before peak stress...
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Experimental research on microscopic and macroscopic damage evolution of artificial frozen sandy gravel
Artificial frozen sandy gravel exhibits the characteristics of wide distribution of particle size and complex composition, which are quite distinct...
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A Fatigue Damage Propagation Model Based on Locally Periodic Micro-crack Growth
This paper develops a new micro-mechanical damage model for fatigue crack propagation in tensile (Mode I) cyclic loading. The double-scale fatigue...
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Analysis of the Microscopic Evolution of Rock Damage Based on Real-Time Nuclear Magnetic Resonance
Under the action of a load, internal pores and cracks expand, and irreversible plastic deformations occur. Compared with conventional rock mechanics...
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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....
