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作者:

Yang YongTao (Yang YongTao.) | Zheng Hong (Zheng Hong.) (学者:郑宏) | Xu DongDong (Xu DongDong.)

收录:

Scopus SCIE CSCD

摘要:

A partition-of-unity (PU) based "FE-Meshfree" three-node triangular element (Trig3-RPIM) was recently developed for linear elastic problems. This Trig3-RPIM element employs hybrid shape functions that combine the shape functions of three-node triangular element (Trig3) and radial-polynomial basis functions for the purpose of synergizing the merits of both finite element method and meshfree method. Although Trig3-RPIM element is capable of obtaining higher accuracy and convergence rate than the Trig3 element and four-node iso-parametric quadrilateral element without adding extra nodes or degrees of freedom (DOFs), the nodal stress field through Trig3-RPIM element is not continuous and extra stress smooth operations are still needed in the post processing stage. To further improve the property of Trig3-RPIM element, a new PU-based triangular element with continuous nodal stress, called Trig3-RPIMcns, is developed. Numerical examples including several linear, free vibration and forced vibration test problems, have confirmed the correctness and feasibility of the proposed Trig3-RPIMcns element.

关键词:

Trig3-RPIMcns mesh distortion FE-Meshfree element partition of unity radial-polynomial basis functions

作者机构:

  • [ 1 ] [Yang YongTao]Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
  • [ 2 ] [Zheng Hong]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Xu DongDong]Yangtze River Sci Res Inst, Minist Water Resources, Key Lab Geotech Mech & Engn, Wuhan 430010, Hubei, Peoples R China

通讯作者信息:

  • [Yang YongTao]Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China

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来源 :

SCIENCE CHINA-TECHNOLOGICAL SCIENCES

ISSN: 1674-7321

年份: 2017

期: 10

卷: 60

页码: 1518-1536

4 . 6 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:165

中科院分区:3

被引次数:

WoS核心集被引频次: 3

SCOPUS被引频次: 3

ESI高被引论文在榜: 0 展开所有

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