소성∙가공 (Transactions of Materials Processing)

  • 제4권1호
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  • Pages.92-104
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  • 1995
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
권호 표지

오차계산에 기초한 대변형 유한요소 해석에서의 요소망 재구성 기준

Remeshing Criterion for Large Deformation Finite Element Analyses Based on the Error Calculation

  • 발행 : 1995.03.01
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초록

It often happens some elements are so largely distorted during a large-deformation finite element analysis that further calculation becomes impossible or the approximation error increases rapidly. This problem can be overcomed only by remeshing at several suitable stages. The present study aimed to establish the criterion based on the error estimators, and examined in the simulation and posterior error analysis of ring compression test to demonstrate the usefulness of them. The distribution of each error estimator and its variation during deformation were investigated. All the error estimators were increased monotonously with deformation and decreased rapidly at remeshing stage. It was shown that the error estimators suggested in this study are good measures as remeshing criterion for large deformation finite element analyses.

키워드

참고문헌

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