Brittle-ductile transition in intrinsic fracture behavior of crystals
- 26 November 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (22), 2804-2807
- https://doi.org/10.1103/physrevlett.65.2804
Abstract
A transition of brittle to ductile propagation of a sharp crack in a crystal is observed by molecular-dynamics simulation and the transition mechanism shown to be the emission of dislocations at the crack tip and activation of specific slip systems appropriate to the crystal structure. Implications for extension of current theories are discussed.Keywords
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