Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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An Effective Mesh Smoothing Technique for the Mesh Constructed by the Mesh Compression Technique

격자압축법을 이용하여 구성된 격자의 효과적인 격자유연화 방법

  • 홍진태 (한국과학기술원 기계공학과) ;
  • 이석렬 (한국과학기술원 기계공학과) ;
  • 양동열 (한국과학기술원 기계공학과)
  • Published : 2003.07.01
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Abstract

In the rigid-plastic finite element simulation of hot forging processes using hexahedral mesh, remeshing of a flash is important for design and control of the process to obtain desirable defect-free products. The mesh compression method is a remeshing technique which enables the construction of an effective hexahedral mesh in the flash. However, because the mesh is distorted during the compression procedure of the mesh compression method, when it is used in resuming the analysis, it causes discretization error and decreases the conversance rate. Therefore, mesh smoothing is necessary to improve the mesh quality. In this study, several geometric mesh smoothing techniques and optimization techniques are introduced and modified to improve mesh quality. Then, the most adaptive technique is recommended for the mesh compression method.

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References

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