A MECHANISM FOR PLASTICITY‐INDUCED CRACK CLOSURE UNDER PLANE STRAIN CONDITIONS

@inproceedings{Pippan1994AMF,
  title={A MECHANISM FOR PLASTICITY‐INDUCED CRACK CLOSURE UNDER PLANE STRAIN CONDITIONS},
  author={Reinhard Pippan and Otmar Kolednik and Michael Lang},
  year={1994}
}
— Plasticity-induced crack closure is associated with a wedge of material in the wake of a fatigue crack. A model is proposed to explain the development of this wedge under plane strain conditions. This model is based on the non-linearity of the crack path. If the plastic zone size is an order of magnitude or larger than the characteristic length of a crack deflection, then the plastic deformation changes the shape of both crack flanks in different ways. This causes a residual displacement on… CONTINUE READING

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