Outside the core, the stresses are the same as that of Volterra dislocation, but inside the core, the stresses of the screw dislocation approach zero when ρ goes to zero. 在螺位错芯区外,其应力场与Volterra位错的应力场完全一样,而在芯区内,当ρ趋于零时,螺位错的应力场是有解的。
According to the elastic stress field in the isotropic medium and Mises yield rule, the configuration of yield zone for the straight Volterra dislocation core was calculated. 根据各向同性连续介质中的弹性应力场和Mises屈服准则,计算出直Volterra位错芯屈服区的二维几何构型。