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Fluid-driven transition from damage to fracture in anisotropic porous media: a multi-scale XFEM approach
In this paper, a numerical method is proposed to simulate multi-scale fracture propagation driven by fluid injection in transversely …
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XFEM to couple nonlocal micromechanics damage with discrete mode I cohesive fracture
A computational tool is developed to simulate the propagation of a discrete fracture within a continuum damage process zone. Microcrack …
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Anisotropic nonlocal damage model for materials with intrinsic transverse isotropy
This paper presents the theoretical formulation and numerical implementation of an anisotropic damage model for materials with …
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Micromechanics based discrete damage model with multiple non-smooth yield surfaces: Theoretical formulation, numerical implementation and engineering applications
The discrete damage model presented in this paper accounts for 42 non-interacting crack microplanes directions. At the scale of the …
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Nonlocal enrichment of a micromechanical damage model with tensile softening: Advantages and limitations
Upon crack propagation, brittle geomaterials such as concrete and rock exhibit a nonlinear stress/strain behavior, damage induced …
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Discrete equivalent wing crack based damage model for brittle solids
The Discrete Equivalent Wing Crack Damage (DEWCD) model formulated in this paper couples micro-mechanics and Continuum Damage Mechanics …
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Estimation of the equivalent elastic modulus in shale formation: Theoretical model and experiment
Anisotropy is prevalent in sedimentary rock masses, such as shale formations that contain numerous inherent bedding planes (BPs) and …
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A new theoretical model for guiding the gas extraction in coal mines
Based on the fractal-percolation properties, the equivalent permeability analysis of 3-D discrete fracture network models are …
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Computational model coupling mode II discrete fracture propagation with continuum damage zone evolution
We propose a numerical method that couples a cohesive zone model (CZM) and a finite element-based continuum damage mechanics (CDM) …
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Fracture size estimation using data from multiple boreholes
The size of a fracture within a rock mass can be obtained using data sampled from boreholes or exposed surfaces. In this study, …
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