Nonlocal elasticity and dislocation image force due to cracks |
| |
Authors: | K-L Pan H-H Dai |
| |
Institution: | (1) Department of Engineering Mechanics, Tongji University, Shanghai, China, CN;(2) Department of Mathematics, City University of Hong Kong, Tat Chee Road, Kowloon, Hong Kong, HK |
| |
Abstract: | Summary Fundamental field equations of nonlocal elasticity are presented. With these equations, the image force on a screw dislocation
due to a crack is analyzed using the conformal mapping technique. Two cases are considered: one is for a finite-length crack,
the other is for an infinite one. All classical singularities of the dislocation image force are eliminated when the dislocation
tends to the crack tip. The maximum of the force is obtained at the crack tip.
Received 10 June 1999; accepted for publication 8 February 2000 |
| |
Keywords: | Nonlocal elasticity dislocation crack interaction force |
本文献已被 SpringerLink 等数据库收录! |
|