Journal ArticleDOI
Peridynamic micro-elastoplastic constitutive model and its application in the failure analysis of rock masses
TLDR
In this article, a micro-elastoplastic constitutive model considering the post-peak stage of rock mass under compression loading is proposed, and the loading-unloading path in the post peak stage of the rock is considered.About:
This article is published in Computers and Geotechnics.The article was published on 2021-04-01. It has received 26 citations till now. The article focuses on the topics: Rock mass classification & Peridynamics.read more
Citations
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Scientific problems and research proposals for Sichuan–Tibet railway tunnel construction
TL;DR: Wang et al. as discussed by the authors proposed a coupled multi-layer analysis of essential tunnel engineering issues to illustrate the necessity of interdisciplinary and joint research to solve problems associated with tunnel construction that will be encountered in the immediate future.
Journal ArticleDOI
Application of a micro-model for concrete to the simulation of crack propagation
TL;DR: In this article, a micro-calculation model of concrete was established by the spherical growth model based on the MATLAB-ABAQUS co-simulation method, which can simulate the crack initiation and propagation of different calculation samples.
Journal ArticleDOI
Upper limit analysis of stability of the water-resistant rock mass of a Karst tunnel face considering the seepage force
TL;DR: Based on the upper limit theorem of limit analysis and the Hoek-Brown failure criterion, the authors established a stability analysis method of analyzing the water-resistant rock mass of a karst tunnel face and developed a critical safety thickness criterion for water inrush caused by the instability of the tunnel face, and conducted a sensitivity analysis of the main influencing parameters.
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Thickness Calculation of Accumulative Damaged Zone by Rock Mass Blasting Based on Hoek–Brown Failure Criterion
TL;DR: In this article , the authors deduced the equation of the strength reduction coefficient and established a method to calculate cyclic blasting disturbance factor D based on the wave velocity decrease rate, which quantified the EDZ range under the cyclic hitting.
Journal ArticleDOI
Thickness Calculation of Accumulative Damaged Zone by Rock Mass Blasting Based on Hoek–Brown Failure Criterion
TL;DR: In this article, cyclic blasting caused accumulative damages to the surrounding rocks, reducing the intactness of the rock mass, and the blasting impact contributes to the formation of an...
References
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Journal ArticleDOI
A finite element method for crack growth without remeshing
TL;DR: In this article, a displacement-based approximation is enriched near a crack by incorporating both discontinuous elds and the near tip asymptotic elds through a partition of unity method.
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Reformulation of Elasticity Theory for Discontinuities and Long-Range Forces
TL;DR: In this paper, a peridynamic formulation for the basic equations of continuum mechanics is proposed, and the propagation of linear stress waves in the new theory is discussed, and wave dispersion relations are derived.
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A meshfree method based on the peridynamic model of solid mechanics
TL;DR: In this article, a numerical method for solving dynamic problems within the peridynamic theory is described, and the properties of the method for modeling brittle dynamic crack growth are discussed, as well as its accuracy and numerical stability.
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Peridynamic States and Constitutive Modeling
TL;DR: In this article, a generalization of the original peridynamic framework for solid mechanics is proposed, which allows the response of a material at a point to depend collectively on the deformation of all bonds connected to the point.
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Fracture coalescence in rock-type materials under uniaxial and biaxial compression
TL;DR: In this paper, the authors investigate fracture coalescence in gypsum specimens under uniaxial and biaaxial compression and show that cracks start at the flaw tip and propagate out of plane as either tensile or shear cracks.