Table of Content

Open Access

ARTICLE

Computational Simulation of Localized Damage by Finite Element Remeshing based on Bubble Packing Method

Soon Wan Chung1, Yoo Jin Choi1, Seung Jo Kim1
Department of Aerospace Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul, 151-742, Korea.

Computer Modeling in Engineering & Sciences 2003, 4(6), 707-718. https://doi.org/10.3970/cmes.2003.004.707

Abstract

In this paper, an automatic finite element remeshing algorithm based on the bubble packing method is utilized for the purpose of numerical simulations of localized damage, because fine meshes are needed to represent the gradually concentrated damage. The bubble packing method introduces two parameters that easily control the remeshing criterion and the new mesh size. The refined area is determined by \textit {a posteriori} error estimation utilizing the value obtained from Superconvergent Patch Recovery. The isotropic ductile damage theory, founded on continuum damage mechanics, is used for this damage analysis. It was successfully shown in the numerical examples (upsetting and extrusion problems) that the remeshing algorithm generates fine and regular meshes for the regions with distorted meshes and that the damage is localized in the refined zone.

Keywords

Bubble packing method, Remeshing, Continuum damage mechanics, localization, metal forming.

Cite This Article

Chung, S. W., Choi, Y. J., Kim, S. J. (2003). Computational Simulation of Localized Damage by Finite Element Remeshing based on Bubble Packing Method. CMES-Computer Modeling in Engineering & Sciences, 4(6), 707–718.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 595

    View

  • 537

    Download

  • 0

    Like

Share Link

WeChat scan