An adaptive material point method coupled with a phase-field fracture model for brittle materials

Young Jo Cheon, Hyun Gyu Kim

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

In this study, a new adaptive method for crack propagation analysis is developed by using the material point method coupled with a phase-field fracture model for brittle materials. A background grid of material particles is adaptively refined based on the amount of material damage to resolve the length scale in the phase-field evolution equation. A division process of the material particles associated with the refined background cells is also performed to increase the resolution of solutions near the crack tip. The effectiveness and validity of the proposed method is assessed through several numerical examples for crack propagation in brittle materials.

Original languageEnglish
Pages (from-to)987-1010
Number of pages24
JournalInternational Journal for Numerical Methods in Engineering
Volume120
Issue number8
DOIs
StatePublished - 23 Nov 2019

Keywords

  • adaptive analysis
  • crack propagation
  • material damage
  • material point method
  • phase-field model

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