A screw dislocation interacting with a cycloid rough surface

被引：1
|
作者：
Wang, Xu [1 ]
Schiavone, Peter [2 ]
机构：
[1] East China Univ Sci & Technol, Sch Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China
[2] Univ Alberta, Donadeo Innovat Ctr Engn 10 203, Dept Mech Engn, Edmonton, AB T6G 1H9, Canada
来源：
ACTA MECHANICA | 2021年 / 232卷 / 06期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1007/s00707-021-02961-2
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We study the interaction between a screw dislocation and a traction-free periodic cycloid wavy surface under uniform remote anti-plane stress. A closed-form solution to the interaction problem is derived using conformal mapping and the image method. The image force acting on the screw dislocation is obtained by applying the Peach-Koehler formula. In the case of a cusped cycloid surface, we determine the mode III stress intensity factors at the cusp tips. Criteria for the emission of the screw dislocation from sharp and blunt cusp tips are established.
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页码：2417 / 2423
页数：7
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