一种原子尺度应变定义方法及其在识别微观缺陷演化中的应用
盛鹰1,2, 贾彬1,2(
), 王汝恒1,2, 陈国平1,2
), 王汝恒1,2, 陈国平1,2
The Definition of Atomic Scale Strain and Its Application in Identifying the Evolution of Microdefects
SHENG Ying1,2, JIA Bin1,2(), WANG Ruheng1,2, CHEN Guoping1,2
), WANG Ruheng1,2, CHEN Guoping1,2
图1. 邻域内离散原子的运动示意图
Fig.1. General motion in the neighborhood of a discrete atomic particle (Ω0—reference configuration; Ω1—current configuration; E1, E2, E3—x, y, z coordinate vectors in Ω0, respectively; e1, e2, e3—x, y, z coordinate vectors in Ω1, respectively; Xm, Xn—coordinate vectors of atom m and atom n in Ω0 at the initial time t0, respectively; xm, xn—coordinate vectors of atom m and atom n in Ω1 at the current time t1, respectively; ΔXmn—position of atom n relative to atom m in Ω0; Δxmn—position of atom n relative to atom m in Ω1; χ—mapping from X to x)
