Effect of constraint on void growth near a blunt crack tip

Cheng Yan, Yiu Wing Mai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


The growth of a single cylindrical hole ahead of a blunt crack tip was studied using large deformation finite element analysis in three-point bend specimens with different precrack depth. The effect of small second phase particles was taken into account by incorporating Gurson's constitutive equation. The effects of strain hardening and the initial distance from the hole to the crack tip were also investigated. The results show that the variation of crack tip opening displacement with load is not sensitive to constraint level. The effects of constraint on the growth of hole and ductile initiation toughness are diminished with decreasing initial distance from the hole to the blunt crack tip.

Original languageEnglish
Pages (from-to)287-304
Number of pages18
JournalInternational Journal of Fracture
Issue number3
Publication statusPublished - 1998
Externally publishedYes


  • Constraint
  • Crack tip opening displacement
  • Damage
  • Finite element analysis
  • Initiation toughness
  • Void growth

ASJC Scopus subject areas

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials


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