Structural Engineering and Mechanics

  • 제12권5호
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  • Pages.475-490
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  • 2001
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Remeshing techniques for r-adaptive and combined h/r-adaptive analysis with application to 2D/3D crack propagation

  • Askes, H. (Faculty of Civil Engineering and Geosciences, Koiter Institute Delft, Delft University of Technology) ;
  • Sluys, L.J. (Faculty of Civil Engineering and Geosciences, Koiter Institute Delft, Delft University of Technology) ;
  • de Jong, B.B.C. (TNO Building and Construction Research)
  • 발행 : 2001.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

Remeshing strategies are formulated for r-adaptive and h/r-adaptive analysis of crack propagation. The relocation of the nodes, which typifies r-adaptivity, is a very cheap method to optimise a given discretisation since the element connectivity remains unaltered. However, the applicability is limited. To further improve the finite element mesh, a combined h/r-adaptive method is proposed in which h-adaptivity is applied whenever r-adaptivity is not capable of further improving the discretisation. Two and three-dimensional examples are presented. It is shown that the r-adaptive approach can optimise a discretisation at minimal computational costs. Further, the combined h/r-adaptive approach improves the performance of a fully r-adaptive technique while the number of h-remeshings is reduced compared to a fully h-adaptive technique.

키워드

참고문헌

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