## Lattice Dynamic Theory of Dislocation Motion |

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### Contents

SNAPPINGBOND SB FORCE LAW | 6 |

NONLINEAR FORCE LAWS | 18 |

DYNAMIC STRESS AND DISLOCATION CORE WIDTH | 49 |

Copyright | |

2 other sections not shown

### Common terms and phrases

AA are relaxed anisotropic applied stress atom rows atomic displacements bonds parallel Burgers vector calculations CM CM continuum corresponding dangling bond dangling-bond dashed line decrease different values dislocation half-width dislocation motion dislocation velocity dislocation-phonon interaction dynamic Peierls stress eigenvalue elasticity emitted energy external strain required external stress finite fixed Fourier transform graph Hooke's law integral equation interatomic force laws interatomic potential interval z,z Ishioka isotropic crystal Lattice dynamics lattice vibrations line in Fig maintain uniform motion minima of curve minimum moving dislocation nonlinear bond nonlinear force law parameter 1/3 peak phase velocity phonon amplitude Phys piecewise-linear PWL Plots of h(u PWL force law PWL model region relative displacement rH CM rH rH rH row of atoms SB model screw dislocation self-consistently shown in Fig slip plane solid line solution speed of sound three minima tion treated nonlinearly University of Virginia wave vector Weiner zero