An element subscale refinement for representation of the progressive fracture based on the phantom node approach

S. Mostofizadeh, F. P. van der Meer, M. Fagerström, L. J. Sluys, R Larsson

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

A new approach for the analysis of the ductile fracture of thin-walled large scale structures is developed. The method proposes a subscale refinement of the elements containing the crack. It allows for smooth progression of the crack without furnishing required level of the mesh refinement, and a more detailed representation of the crack tip and crack kink within the cracked elements. This approach is based on the phantom node method and is intended to be applicable for different types of elements including both low and high order elements. Numerical examples for dynamic crack propagation are presented and compared to conventional solutions to prove the accuracy and effectiveness of the proposed approach.

Original languageEnglish
Pages (from-to)134-145
Number of pages12
JournalComputers & Structures
Volume196
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • Crack tip element
  • Dynamic ductile fracture
  • Phantom node method
  • Shell
  • Subscale refinement

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