MPM–FEM hybrid method for granular mass–water interaction problems

Shaoyuan Pan, Yuya Yamaguchi, Anawat Suppasri, Shuji Moriguchi, Kenjiro Terada

Research output: Contribution to journalArticlepeer-review

Abstract

The present study proposes an MPM (material point method)–FEM (finite element method) hybrid analysis method for simulating granular mass–water interaction problems, in which the granular mass causes dynamic motion of the surrounding water. While the MPM is applied to the solid (soil) phase whose motion is suitably represented by Lagrangian description, the FEM is applied to the fluid (water) phase that is adapted for Eulerian description. Also, the phase-field approach is employed to capture the free surface. After the accuracy of the proposed method is tested by comparing the results to some analytical solutions of the consolidation theory, several numerical examples are presented to demonstrate its capability in simulating fluid motions induced by granular mass movements.

Original languageEnglish
JournalComputational Mechanics
DOIs
Publication statusAccepted/In press - 2021
Externally publishedYes

Keywords

  • Finite element method
  • Granular mass–water interactions
  • Large deformation
  • Material point method
  • Tsunami

ASJC Scopus subject areas

  • Computational Mechanics
  • Ocean Engineering
  • Mechanical Engineering
  • Computational Theory and Mathematics
  • Computational Mathematics
  • Applied Mathematics

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