Perturbation of mode III interfacial cracks

@article{Piccolroaz2010PerturbationOM,
  title={Perturbation of mode III interfacial cracks},
  author={Andrea Piccolroaz and Gennady Mishuris and Alexander B. Movchan},
  journal={International Journal of Fracture},
  year={2010},
  volume={166},
  pages={41-51}
}
We consider the perturbation problem of a Mode III interfacial crack. The perturbation is of geometrical type and can be both perturbation of the crack faces and perturbation of the interface, which can deviate from the initial straight line configuration. Asymptotic formulae are derived for the first-order perturbation of the stress intensity factor. It is shown that, due to the unsymmetrical nature of the problem, the Mode III skew-symmetric weight function derived in Piccolroaz et al. (J… 

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