Abstract
Distribution of dislocations at a finite mode I crack tip is formulated. Closed form solutions for the dislocation distribution function, the dislocation-free zone (DFZ), the local stress intensity factor and the crack tip stress field are obtained. The dislocation distribution has similar features to a mode III crack model. Under a given applied stress, there may exist different configurations of plastic zone and DFZ. Crack tip shielding by dislocations depends on both applied stresses and the configuration.
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Chen, J., Kitaoka, S. Distribution of dislocations at a mode I crack tip and their shielding effect. International Journal of Fracture 100, 307–320 (2000). https://doi.org/10.1023/A:1018681016860
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DOI: https://doi.org/10.1023/A:1018681016860