WebJun 16, 2024 · In this work, numerical computations of image forces and stored energy during the growth of a strain free grain within a recovered matrix containing an array of identical dislocations are performed. A decrease of the stored energy is observed when image forces are attractive and an increase when image forces are repulsive. WebSep 8, 2015 · The elastodynamic image forces on edge and screw dislocations in the presence of a planar-free surface are derived. The explicit form of the elastodynamic …
Elastodynamic image forces on dislocations
WebThe elastodynamic image forces on edge and screw dislocations in the presence of a planar-free surface are derived. The explicit form of the elastodynamic fields of an injected, quiescent screw dislocation are also derived. The resulting image forces are affected by retardation effects: the dislocations experience no image force for a period ... http://pure-oai.bham.ac.uk/ws/portalfiles/portal/79660062/Author_tex_1_.pdf toto tcf8gs34 機能
Elastodynamic image forces on screw dislocations in the presenc…
WebIt is shown that the elastodynamic image forces are generally affected by retardation effects, and that those acting on the moving dislocations display a dynamic magnification that exceed the attraction (or repulsion) predicted in classical elastostatic calculations. The elastodynamic image forces acting on straight screw dislocations in the presence of … WebFeb 1, 2016 · Fig. 2 compares images of time sequences of dislocation nucleation and motion from MD and CAC simulations of Model-1 (d/D = 1/10, Fig. 2 a) and Model-2 (d/D = 1/20, Fig. 2 b). Due to the symmetry of the specimen configuration about the y axis, only the left part of the specimen in MD and the right part of the specimen in CAC are displayed … Webwhere B is the magnitude of the Burgers vector, μ the shear modulus and ν Poisson's ratio, and F x is the image force in the glissile direction per unit length.. This article derives the elastodynamic image forces experienced by both straight screw and edge … where B is the magnitude of the Burgers vector, μ the shear modulus and ν … toto olympic