A hybrid XFEM –Phase field (Xfield) method for crack propagation in brittle elastic materials

Bianca Giovanardi, Anna Scotti, Luca Formaggia

Research output: Contribution to journalArticleScientificpeer-review

30 Citations (Scopus)

Abstract

The present work proposes a novel method for the simulation of crack propagation in brittle elastic materials that combines two of the most popular approaches in literature. A large scale displacement solution is obtained with the well known extended finite elements method (XFEM), while propagation is governed by the solution of a local phase field problem at the tip scale. The method, which we will refer to as Xfield, is here introduced and tested in 2D under mixed modes I and II loads. The main features and the capability of the Xfield to efficiently simulate crack propagation are shown in some numerical benchmarks.

Original languageEnglish
Pages (from-to)396-420
Number of pages25
JournalComputer Methods in Applied Mechanics and Engineering
Volume320
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Brittle fracture
  • Crack propagation
  • Phase field
  • XFEM

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