A direct method for solving crack growth problems-I

X. Li*, L. M. Keer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Based on the boundary element equation approach for crack opening displacements, an equation of the perturbation type is derived giving an explicit relation between the crack front variation and the resulting variation in the stress intensity factor. By using this equation, the crack front advance can be predicted at each step of crack growth while ensuring that the fracture criterion is satisfied for the new crack geometry. As an example, the problem of the growth under a Dugdaletype model for cracks of elliptical and circular shapes with uniform and linear variation of tensile loads is solved and the numerical results are discussed.

Original languageEnglish (US)
Pages (from-to)2735-2747
Number of pages13
JournalInternational Journal of Solids and Structures
Issue number22
StatePublished - 1992

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics


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