Coupled Moving Particle Simulation-Finite-Element Method Analysis of Fluid-Structure Interaction in Geodisasters

Chongqiang Zhu, Zhiyi Chen, Yu Huang

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Geodisasters associated with fluidized geomaterials, such as flow-like landslides, flow slides, and debris flows, pose a tremendous threat to communities and the environment. Protective structural measures are therefore important for disaster prevention and mitigation. However, the development of a numerical method to study fluid-structure interaction (FSI) remains a challenge. A coupled method is proposed using moving particle simulation (MPS) to simulate the large deformation of fluidized geomaterials and a finite-element method (FEM) to model the dynamic behavior of structures. A new boundary condition based on the Shepard filter method is developed for MPS to improve its efficiency. An interaction model with weak coupling schemes is used to effectively communicate information and coordinate the different time steps between the MPS and FEM approaches. The effectiveness and accuracy of the hybrid numerical method for FSI are verified and validated using a series of benchmark problems.

Original languageEnglish
Article number04021081
Number of pages11
JournalInternational Journal of Geomechanics
Volume21
Issue number6
Early online date25 Mar 2021
DOIs
Publication statusPublished - 1 Jun 2021

Keywords

  • Finite-element method
  • Geodisasters
  • Hybrid method
  • Interaction
  • Moving particle simulation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Soil Science

Fingerprint

Dive into the research topics of 'Coupled Moving Particle Simulation-Finite-Element Method Analysis of Fluid-Structure Interaction in Geodisasters'. Together they form a unique fingerprint.

Cite this