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This document summarizes a study that models the growth of a short fatigue crack in bcc iron under cyclic loading conditions. The crack grows through the emission and annihilation of discrete dislocations along preferred slip planes, leading to a zigzag crack shape. The model combines a discrete dislocation formulation with a boundary element approach. It models the external boundaries including the crack with dislocation dipole elements, and models local plasticity with discrete dislocations on slip planes

Author

VivaLaVida

Language

EN