Accession Number : AD0274488

Title :   THE FORCE ON A MOVING DISLOCATION

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE LAB FOR INSULATION RESEARCH

Personal Author(s) : STROH,ALAN N.

Report Date : MAR 1962

Pagination or Media Count : 1

Abstract : A Lagrangian formulation is used to discuss the nature of the force on a moving dislocation. Whether or not a Lorentz force appears depends on the definition of force adopted, but it is shown that this force can give rise to no physical effects; a definition which does not introduce it is therefore recommended. The force is given by the usual static expression (F = sigma b) and is independent of the motion of the dislocation. (Author)

Descriptors :   *ELASTIC PROPERTIES, *NUMERICAL INTEGRATION, *MECHANICS, *PARTIAL DIFFERENTIAL EQUATIONS, *SOLID STATE PHYSICS, *SOLIDS, CRYSTALS, DEFORMATION, DYNAMICS, KINETIC THEORY, LOAD DISTRIBUTION, METAL CRYSTALS, POTENTIAL THEORY, SHEAR STRESSES, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE