ABSTRACT

The elastic field of an angular dislocation determined by Yoffe ([The angular dislocation. Phil. Mag. 5(50) (1960), pp. 161–175]) using isotropic elasticity is a convenient tool for modelling defects in very different materials such as crystalline media or the Earth’s crust deformed by internal shifts. We show that the anisotropy of the medium can be introduced in two ways to solve the same problem, one using an integral formalism and the other the Green’s tensor attached to a homogeneous medium. β’ CuZn brass, which has a strong elastic anisotropy, is treated with the two methods, and the results are compared.

摘要

由 Yoffe 确定的角位错的弹性场（[ The angular dislocation . Phil. Mag. 5(50) (1960), pp. 161–175]）使用各向同性弹性来模拟非常不同材料中的缺陷，例如作为晶体介质或因内部变化而变形的地壳。我们证明了介质的各向异性可以通过两种方法来解决同一个问题，一种是使用积分形式，另一种是格林张量附加到均匀介质上。采用两种方法处理具有强弹性各向异性的β'CuZn黄铜，并对结果进行了比较。