Fracture & Damage Mechanics

Non-Local Micromechanical Anisotropic Damage Modeling for Quasi-Brittle Materials: Formulation and Implementation
ABSTRACT: A nonlocal anisotropic damage model is proposed for quasi-brittle materials, such as concrete and rock. The local anisotropic …
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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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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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Simulation of mode II unconstrained fracture path formation coupled with continuum anisotropic damage propagation in shale
The objective of this work is to simulate mode II multi-scale fracture propagation in shale by coupling a continuum anisotropic damage …
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Numerical study of the influence of fluid viscosity on wellbore spalling in drained fractured rock
The objective of this work is to model the influence of shear stresses induced by viscous fluid flow on wellbore spalling. We simulated …
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Elliptical fracture network modeling with validation in Datong Mine, China
Roof-coal recovery rate and the performance of gas extraction are essentially controlled by the fractures within coal-rock mass. Thus, …
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Finite Element Simulation of Anisotropic Damage around Pressurized Boreholes in Prefractured Shale
Abstract Optimizing hydraulic fracture injection parameters in order to maximize hydrocarbon extraction and to avoid extensive borehole …
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Analytical expressions for the size distribution function of elliptical joints
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