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Numerical Investigation on Improving the Computational Efficiency of the Material Point Method

Author

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  • Jingxin Ma
  • Shengzhuo Lu
  • Yaqin Shi
  • Keyi Chen
  • Weidong Chen

Abstract

Based on the basic theory of the material point method (MPM), the factors affecting the computational efficiency are analyzed and discussed, and the problem of improving calculation efficiency is studied. This paper introduces a mirror reflection boundary condition to the MPM to solve axisymmetric problems; to improve the computational efficiency of solving large deformation problems, the concept of "dynamic background domain (DBD)" is also proposed in this paper. Taking the explosion and/or shock problems as an example, the numerical simulation are calculated, and the typical characteristic parameters and the CPU time are compared. The results show that the processing method introducing mirror reflection boundary condition and MPM with DBD can improve the calculation efficiency of the corresponding problems, which, under the premise of ensuring its calculation accuracy, provide useful reference for further promoting the engineering application of this method.

Suggested Citation

  • Jingxin Ma & Shengzhuo Lu & Yaqin Shi & Keyi Chen & Weidong Chen, 2021. "Numerical Investigation on Improving the Computational Efficiency of the Material Point Method," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-18, February.
    • Handle: RePEc:hin:jnlmpe:8854318
    DOI: 10.1155/2021/8854318
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