Finite element analysis of blast-induced fracture propagation in hard rocks

Marko Bendezu, Celso Romanel, Deane Roehl

Research output: Contribution to journalArticle (Contribution to Journal)

27 Scopus citations

Abstract

This paper presents a numerical analysis based on the finite element method to simulate blast-induced hard rock fracture propagation. Three different approaches are compared: the extended finite element method, with a cohesive zone model to represent the growth of fractures; the conventional finite element method using a remeshing technique and based on the linear fracture mechanics; the element deletion method to simulate a rock fragmentation process. The rock mass is a sound granite that remains linear elastic right up the breakage. Two numerical examples are presented in order to discuss the advantages and limitations of each approach.

Original languageEnglish
Pages (from-to)1-13
Number of pages13
JournalComputers and Structures
Volume182
DOIs
StatePublished - 1 Apr 2017
Externally publishedYes

Keywords

  • Cohesive zone model
  • Extended finite element method
  • Fracture propagation
  • Rock blasting

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