Simulation of Dislocation Core, Plastic Deformation and Fracture in Metallic Crystals
作者： Masao Doyama
DOI: 10.1007/978-3-662-35369-1_4
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摘要: The core structure and energy were calculated for complete edge dislocations dissociated in copper. By making a step on one surface (102) of rectangular small paralelipiped copper crystal, could be created by the molecular dynamic method. dislocation was not but pair Heidenreich— Shockley partial dislocations. Each time created, stress released. Small iron crystals having notch pulled (until fracture), compressed buckled use An embedded atom potential used to represent interaction between atoms. Dislocations near tip notch. A very sharp yield observed. amorphous specimen strained also extended until it fractured.
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