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Crack coalescence and brittle failure characteristics of open rock bridges
Yantu gongcheng xuebao, 2020 The coalescence of rock bridge of fractured rock mass with end cracking is the main cause of the sudden damage of the rock mass, and the brittle failure is obvious.
CHEN Guo-qing , CHEN Yi 1, SUN Xiang 1, WANG Dong 2, QING Chang-an 1, LIN Zhi-heng 2
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Yantu gongcheng xuebao, 2023 The crack initiation and crack damage strengths of rock are the important indexes to evaluate the high stress failure of hard rock. Based on the Hoek triaxial compression tests and acoustic emission tests, a brittle rock-like model material that can ...
KONG Yang 1, RUAN Huaining 2, ZHANG Guirong 1, HE Ning 1, WANG Zhangchun 1
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Concentration versus Oscillation Effects in Brittle Damage [PDF]
Communications on Pure and Applied Mathematics, 2020 AbstractThis work is concerned with an asymptotic analysis, in the sense of Γ‐convergence, of a sequence of variational models of brittle damage in the context of linearized elasticity. The study is performed as the damaged zone concentrates into a set of zero volume and, at the same time and to the same order ε, the stiffness of the damaged material ...
Babadjian J-F, Iurlano F, Rindler F
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Damage and Failure in a Statistical Crack Model
Applied Sciences, 2020 In this paper I will take a close look at a statistical crack model (SCM) as is used in engineering computer codes to simulate fracture at high strain rates.
L.G. Margolin
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Nanoscale removal mechanisms in abrasive machining of brittle solids
Jin'gangshi yu moliao moju gongcheng, 2022 Brittle solids with dominant covalent-ionic bonding, including single crystals, polycrystals, and optical glass, are core materials for modern microelectronic and optoelectronic devices that are widely used in energy, communication, transportation, and ...
Shuiquan HUANG +3 more
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From Brittle to Ductile Fracture in Disordered Materials [PDF]
, 2010 We introduce a lattice model able to describe damage and yielding in heterogeneous materials ranging from brittle to ductile ones. Ductile fracture surfaces, obtained when the system breaks once the strain is completely localized, are shown to correspond
Clara B. Picallo +4 more
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Numerical Modeling of Shock-Induced Damage for Granite under Dynamic Loading [PDF]
, 2006 Johnson-Holmquist constitutive model for brittle materials, coupled with a crack softening model, is used to describe the deviatoric and tensile crack propagation beneath impact crater in granite.
Ahrens, T. J., Ai, H. A.
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Geosciences, 2019 The stability of high rock slopes is largely controlled by the location and orientation of geological features, such as faults, folds, joints, and bedding planes, which can induce structurally controlled slope instability. Under certain conditions, slope
Davide Donati +3 more
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Applied Sciences, 2022 Impact loads in previous research showed to induce brittle responses of statically flexure-critical reinforced concrete (RC) beams designed for ductility.
Viktor Peterson +2 more
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Damage-cluster distributions and size effect on strength in compressive failure [PDF]
, 2012 We investigate compressive failure of heterogeneous materials on the basis of a continuous progressive damage model. The model explicitely accounts for tensile and shear local damage and reproduces the main features of compressive failure of brittle ...
David Amitrano +5 more
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