Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Remeshing Criterion for Large Deformation Finite Element Analysis

대변형 유한요소해석에서 요소망의 재구성을 위한 기준

  • Cho, Hae-Gyu ;
  • Chae, Soo-Won ;
  • Park, Jong-Jin
  • 조해규 (대우중공업(주)) ;
  • 채수원 (고려대학교 기계공학과) ;
  • 박종진 (홍익대학교 기계공학과)
  • Published : 1996.10.01
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Abstract

In this paper, a remeshing criterion has been suggested in order to order to automate the remeshing decision during finite element analysis of metal forming. In order to use for the remeshing decision, two of remeshing criteria have been investigated. One is the use of error estimates based on errors in stresses and strain rate of the finite element solution and the other is the use of geometric characterisreics of distorted elements. As a result, the strain rate error estimate in power norm based on the former is found to give more valuable information about remeshing decision than the ones based on the latter. Examples are given to demon- strate the usefulness of the suggested eroor estimate as a remeshing criterion.

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