Numerical predictions of post-flow behaviour of granular materials using an improved SPH model

H. H. Bui, Giang D. Nguyen

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Other

2 Citations (Scopus)

Abstract

This paper presents the recent development of the smoothed particle hydrodynamics (SPH) method for accurate predictions of granular flows. Granular materials are described within the classical plasticity theory framework, while the large deformation and flow behaviour of the materials are simulated by the mesh-free SPH. To improve the accuracy of SPH for the post-flow prediction at which stress fluctuation under large shear deformation is usually observed, a stress regularisation technique recently proposed by the authors is adopted. Through several numerical validations with experiments under 2D and 3D conditions, the proposed SPH model shows significant improvements in the accuracy and stability of SPH not only for simulations of granular flows, but also for general applications for solid materials.

Original languageEnglish
Title of host publicationCIGOS 2019, Innovation for Sustainable Infrastructure
Subtitle of host publicationProceedings of the 5th International Conference on Geotechnics, Civil Engineering Works and Structures
PublisherSpringer
Pages895-900
Number of pages6
DOIs
Publication statusPublished - 2020

Publication series

NameLecture Notes in Civil Engineering
Volume54
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Keywords

  • Granular flows
  • Granular materials
  • Plasticity
  • Post-failure
  • SPH

Cite this

Bui, H. H., & Nguyen, G. D. (2020). Numerical predictions of post-flow behaviour of granular materials using an improved SPH model. In CIGOS 2019, Innovation for Sustainable Infrastructure: Proceedings of the 5th International Conference on Geotechnics, Civil Engineering Works and Structures (pp. 895-900). (Lecture Notes in Civil Engineering; Vol. 54). Springer. https://doi.org/10.1007/978-981-15-0802-8_143