Branch cracking and debonding at an end of a rigid stiffener under anti-plane shear stress

Norio Hasebe*, Leon M Keer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A semi-infinite body with a rigid stiffener on a part of the surface under uniform anti-plane shear stress is considered. This is a mixed boundary value problem, and a closed and exact solution is obtained. Stress concentration occurs at the ends of the stiffener; therefore a crack or a debonding may occur at the end of the stiffener. This paper investigates the competition between a crack or a debonding occurrence. It also investigates how far the debonding will extend. The maximum strain energy release rate is used as criterion for detecting a crack and a debonding initiation. Also the strain energy release rate just after crack initiation is investigated and the crack initiation angle is 140.8°. As the applied load, the following three kind of loading conditions are considered; constant loading, increasing loading and small cyclic loading.

Original languageEnglish (US)
Pages (from-to)303-313
Number of pages11
JournalInternational Journal of Fracture
Issue number4
StatePublished - Dec 1 2007


  • Anti-plane shear
  • Branch
  • Competition
  • Cyclic loading
  • Debonding
  • Increasing loading
  • Kinkedcrack
  • Longitudinal shear
  • Mixed boundary value
  • ModeIII
  • Stiffener
  • Strain energy release rate

ASJC Scopus subject areas

  • Computational Mechanics
  • Modeling and Simulation
  • Mechanics of Materials


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