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作者:

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

收录:

EI Scopus SCIE

摘要:

This paper investigates the performance of the three-node triangular element with continuous nodal stress (Trig3-CNS) for geometry nonlinear solid mechanic problems. This Trig3-CNS element was recently proposed to improve accuracy of the finite element. method (FEM). By synergizing the individual strengths of meshfree method and FEM, the Trig3-CNS element achieves higher accuracy and convergence rate. Furthermore, Trig3-CNS presents high tolerance to mesh distortion. Therefore, it is potentially useful for geometry nonlinear solid mechanics problems in which mesh distortion takes place. Compared with the traditional hybrid "FE-Meshfree" elements, Trig3-CNS naturally processes CNS without requiring any extra operation in post-processing. Numerical tests in the present work show that for geometry nonlinear analysis, the results of the Trig3-CNS element are better than the 3-node triangular element (Trig3) and 4-node isoparametric quadrilateral element (Quad4). In addition, the performance of Trig3-CNS is comparable to that of traditional hybrid "FE-Meshfree" elements.

关键词:

Partition of unity method Trig3-CNS hybrid FE-Meshfree element mesh distortion geometric nonlinear analysis

作者机构:

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

通讯作者信息:

  • [Sun, Guanhua]Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China

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来源 :

INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS

ISSN: 0219-8762

年份: 2018

期: 4

卷: 15

1 . 7 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:156

JCR分区:3

被引次数:

WoS核心集被引频次: 7

SCOPUS被引频次: 8

ESI高被引论文在榜: 0 展开所有

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