Journal ArticleDOI
Peridynamic simulation on fracture mechanical behavior of granite containing a single fissure after thermal cycling treatment
TLDR
In this paper, the authors investigated the thermal-mechanical fracturing behaviors of granite after thermal cycling treatment using the fully coupled ordinary state-based peridynamic method, and the combination effect of the temperature and fissure inclination angle on the stress-strain response as well as the crack evolution processes is also systematically investigated, and corresponding characteristics of crack initiation, propagation and coalescence modes are discussed and summarized.About:
This article is published in Computers and Geotechnics.The article was published on 2020-04-01. It has received 24 citations till now. The article focuses on the topics: Fissure & Temperature cycling.read more
Citations
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Journal ArticleDOI
Smoothed particle hydrodynamics (SPH) and its applications in geomechanics: From solid fracture to granular behaviour and multiphase flows in porous media
Ha H. Bui,Giang D. Nguyen +1 more
TL;DR: A new and robust SPH approximation formulation for the Laplacian, which involves the second-order derivatives of a field quantity is proven to outperform existing SPH formulations and achieve high accuracy.
Journal ArticleDOI
Experiment and peridynamic simulation on cracking behavior of red sandstone containing a single non-straight fissure under uniaxial compression
TL;DR: In this article, a series of uniaxial compression experiments and numerical simulations were conducted to investigate the fracture behavior of red sandstone specimens with respect to various α values, and the results indicated that tensile cracks first initiated from the convex points of the prefabricated open fissure and the crack initiation position transferred from a convex point to the tip of the pre-formed fissures for α ≤ 30°-60°.
Journal ArticleDOI
A new 3D continuous-discontinuous heat conduction model and coupled thermomechanical model for simulating the thermal cracking of brittle materials
TL;DR: In this paper, a 3D continuous-discontinuous heat conduction model was proposed to consider the thermal resistance effect of cracks and dynamic crack propagation during heat transfer, and a coupled thermomechanical model for solving thermal cracking problems in brittle materials.
Journal ArticleDOI
Micro-cracking behavior of shale matrix during thermal recovery: Insights from phase-field modeling
TL;DR: In this article, a variational principle was used to formulate coupled thermo-mechanical phase-field method by the variational principles to estimate the effect of thermal contribution and initial stress field on the micro-cracking behavior of shale matrix.
Journal ArticleDOI
Experimental study on the failure process of sandstone subjected to cyclic loading and unloading after high temperature treatment
TL;DR: In this paper, the authors investigated the influence of temperature on sandstone failure process, and the cyclic loading and unloading tests under the action of seepage and stress were carried out on sandstones after different temperature (25-800°C) treatments.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
A three dimensional large deformation meshfree method for arbitrary evolving cracks
Timon Rabczuk,Ted Belytschko +1 more
TL;DR: In this paper, a new approach for modeling discrete cracks in mesh-free particle methods in 3D is described, where cracks can be arbitrarily oriented, but their growth is represented by activation of crack surfaces at individual particles, so no representation of the crack's topology is needed.
Book
Peridynamic Theory and Its Applications
Erdogan Madenci,Erkan Oterkus +1 more
TL;DR: In this paper, the authors proposed a coupling of the Peridynamic Theory and Finite Element Methods to solve the impact problem of local interaction. And they showed that the theory can be combined with thermal diffusion.