Evaluation of the amount of crack growth in 2D LEFM problems

Stefania Fortino, Antonio Bilotta

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

This work proposes an algorithm for the evaluation of the amount of crack growth in two-dimensional problems of linear elastic fracture mechanics. The method is based on the energetic formulation of the coupled displacement-crack propagation problem defined by Nguyen et al. in 1990 in order to study the stability of crack growth in elastic fracture. To avoid the remeshing usually needed for modelling crack growth, a PUFEM model is utilized. The proposed algorithm is valid for stable rectilinear crack growth in LEFM but it can be extended to evaluate stable curvilinear crack growth in materials showing dissipative deformations.

Original languageEnglish
Pages (from-to)1403-1419
Number of pages17
JournalEngineering Fracture Mechanics
Volume71
Issue number9-10
DOIs
Publication statusPublished - 1 Jan 2004
MoE publication typeNot Eligible

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Crack propagation
Fracture mechanics

Keywords

  • Energy methods
  • Linear elastic fracture mechanics (LEFM)
  • PUFEM models
  • Stable crack growth
  • Unremeshing techniques

Cite this

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Evaluation of the amount of crack growth in 2D LEFM problems. / Fortino, Stefania; Bilotta, Antonio.

In: Engineering Fracture Mechanics, Vol. 71, No. 9-10, 01.01.2004, p. 1403-1419.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Bilotta, Antonio

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AB - This work proposes an algorithm for the evaluation of the amount of crack growth in two-dimensional problems of linear elastic fracture mechanics. The method is based on the energetic formulation of the coupled displacement-crack propagation problem defined by Nguyen et al. in 1990 in order to study the stability of crack growth in elastic fracture. To avoid the remeshing usually needed for modelling crack growth, a PUFEM model is utilized. The proposed algorithm is valid for stable rectilinear crack growth in LEFM but it can be extended to evaluate stable curvilinear crack growth in materials showing dissipative deformations.

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