A non-matching finite element-scaled boundary finite element coupled method for linear elastic crack propagation modelling
作者: Z.J. YangX.F. WangD.S. YinCh Zhang
作者单位: 1College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
2School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester L13 9PL, UK
3College of Hydraulic and Environmental Engineering, Three Gorges University, Yichang 443002, China
4Department of Civil Engineering, University of Siegen, Paul-Bonatz-Str. 9-11, D-57076 Siegen, Germany
刊名: Computers and Structures, 2015, Vol.153 , pp.126-136
来源数据库: Elsevier Journal
DOI: 10.1016/j.compstruc.2015.02.034
关键词: Scaled boundary finite element methodNon-matching meshStress intensity factorsCrack propagationRemeshing procedureLinear elastic fracture mechanics
原始语种摘要: Abstract(#br)A novel method coupling the scaled boundary finite element method (SBFEM) and the finite element method (FEM) is developed for linear elastic fracture modelling. A very simple but effective remeshing procedure based on the FE mesh only is used to accommodate crack propagation. The crack-tip region is modelled by an SBFE subdomain whose semi-analytical displacement solutions are used to extract accurate stress intensity factors. The SBFE subdomain is coupled with the surrounding FE mesh through virtual interfaces so that non-matching nodal discretisations of the shared boundaries can be used and only one SBFE subdomain is needed at a crack-tip. A few plane problems are modelled to validate the new method.
全文获取路径: Elsevier  (合作)
影响因子:1.509 (2012)

  • matching 匹配
  • finite 有限的
  • element 元素
  • propagation 传播
  • coupled 耦合
  • scaled 成比例的
  • boundary 边界
  • elastic 有弹性的
  • fracture 断口
  • crack 裂隙