Solitary wave equation for steady-state propagation of an extended defect in a solid

摘要

Lattice models to describe the steady-state propagation of (i) a screw dislocation and (ii) a crack as a pileup of screw dislocations appear to be useful. This prompts us to exhibit a solitary wave equation which describes the continuum limit of the lattice model of Celli and Flytzanis for a screw dislocation. Some numerical consequences of this continuum equation are also presented. (C) 1998 American Institute of Physics. References: 5