A single theory for some quasi-static, supersonic, atomic, and tectonic scale applications of dislocations

作者：Zhang Xiaohan; Acharya Amit; Walkington Noel J; Bielak Jacobo

来源：Journal of the Mechanics and Physics of Solids, 2015, 84: 145-195.

DOI：10.1016/j.jmps.2015.07.004

• Field Dislocation Mechanics
• Peierls stress
• Dislocation pile-up
• Dislocation dissociation
• Supersonic dislocation
• Dynamic dislocation fields
• Dynamic rupture

We describe a model based on continuum mechanics that reduces the study of a significant class of problems of discrete dislocation dynamics to questions of the modern theory of continuum plasticity. As applications, we explore the questions of the existence of a Peierls stress in a continuum theory, dislocation annihilation, dislocation dissociation, finite-speed-of-propagation effects of elastic waves vis-a-vis dynamic dislocation fields, supersonic dislocation motion, and short-slip duration in rupture dynamics.

• 出版日期2015-11