Modeling cracking behavior of rock mass containing inclusions using the enriched numerical manifold method

被引：87

作者：

Wu, Zhijun ^{[1
]}

Wong, Louis Ngai Yuen ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore

来源：

ENGINEERING GEOLOGY | 2013年 / 162卷

关键词：

Numerical manifold method; Partition of unity method; X-FEM; Crack initiation criterion; Crack evolution technique; Stiff/weak inclusions; FINITE-ELEMENT-METHOD; COVER METHOD; PROPAGATION; GROWTH; DISCONTINUITIES; PARTITION; MICROSTRUCTURE; INITIATION; FRACTURE;

D O I：

10.1016/j.enggeo.2013.05.001

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In this study, the effects of weak and stiff circular inclusions on the overall mechanical behavior, in particular the cracking processes (crack initiation, propagation and coalescence) of a rectangular rock mass under uniaxial compression are investigated. The enriched method, which has been adopted by XFEM to treat the material interfaces, is incorporated into the numerical manifold method (NMM). By incorporating the modified Mohr Coulomb crack initiation criterion and the crack evolution techniques, the cracking processes of specimens containing either one or two inclusions are successfully modeled by the developed NMM. Comparing the simulation and physical test results, the feasibility of the enriched method in treating inclusions is discussed. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

引用

页码：1 / 13

页数：13

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