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作者:

Yang, Yongtao (Yang, Yongtao.) | Zheng, Hong (Zheng, Hong.) (学者:郑宏)

收录:

Scopus SCIE

摘要:

A three-node triangular element fitted to the numerical manifold method with continuous nodal stress called Trig3-CNS (NMM) element for accurately modeling two-dimensional linear elastic fracture problems is presented. By adopting two cover systems, namely, the mathematical cover and physical cover, the numerical manifold method (NMM) could easily solve continuous and discontinuous problems in a unified way. In contrast to the three-node triangular element (Trig3), the Trig3-CNS element has higher order of approximations, much better accuracy and continuous nodal stress. Moreover, it is free from the "linear dependence" which otherwise cripples many of the partition of unity based methods with high order approximations. The purpose of the present work is to synergize the advantages of both the recently developed Trig3-CNS element and the NMM to precisely model two-dimensional linear elastic fracture problems. A number of numerical examples indicate the accuracy and robustness of the present Trig3-CNS (NMM) element. (C) 2016 Elsevier Ltd. All rights reserved.

关键词:

Continuous nodal stress Crack propagation Numerical manifold method Stress intensity factor Trig3-CNS (NMM) element

作者机构:

  • [ 1 ] [Yang, Yongtao]Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
  • [ 2 ] [Zheng, Hong]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 郑宏

    [Zheng, Hong]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

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来源 :

ENGINEERING FRACTURE MECHANICS

ISSN: 0013-7944

年份: 2016

卷: 162

页码: 51-75

5 . 4 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:102

中科院分区:3

被引次数:

WoS核心集被引频次: 81

SCOPUS被引频次: 89

ESI高被引论文在榜: 0 展开所有

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