A through interface crack between a ±45° transversely isotropic pair of materials

Yuval Freed, Leslie Banks-Sills

Research output: Contribution to journalArticlepeer-review


In this study, the first term of the asymptotic displacement and stress fields is determined analytically for a straight through crack along the interface between a ±45? transversely isotropic pair of materials. Since with this configuration, there is full coupling between the modes, this problem requires a three-dimensional treatment. To calculate stress intensity factors, a three-dimensional M-integral is derived using the asymptotic fields as auxiliary solutions. The displacement extrapolation method is derived as well, and used to check the results obtained by the M-integral. Two numerical test cases are employed to examine the accuracy of both methods. Results obtained for other mechanical problems are presented as well.

Original languageEnglish
Pages (from-to)1-41
Number of pages41
JournalInternational Journal of Fracture
Issue number1
StatePublished - Jan 2005


  • Fiber reinforced material
  • Interface crack
  • Stress intensity factors
  • Three-dimensional J -integral
  • Three-dimensional M-integral
  • Transversely isotropic material


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