Point force and edge dislocation in a two-phase anisotropic medium

1996 ◽  
Vol 47 (4) ◽  
pp. 617-630
Author(s):  
Dai -Heng Chen
Keyword(s):  
Anisotropic Medium ◽  
Edge Dislocation ◽  
Point Force ◽  
Two Phase

An Edge Dislocation in a Three-Phase Composite Cylinder Model

1991 ◽  
Vol 58 (1) ◽  
pp. 75-86 ◽  
Author(s):  
H. A. Luo ◽  
Y. Chen
Keyword(s):  
Edge Dislocation ◽  
Stable Equilibrium ◽  
Phase Model ◽  
Composite Cylinder ◽  
Two Phase ◽  
Trapping Mechanism ◽  
Three Phase ◽  
Cylinder Model ◽  
Stable Equilibrium Position ◽  
The Stability

An exact solution is given for the stress field due to an edge dislocation embedded in a three-phase composite cylinder. The force on the dislocation is then derived, from which a set of simple approximate formulae is also suggested. It is shown that, in comparison with the two-phase model adopted by Dundurs and Mura (1964), the three-phase model allows the dislocation to have a stable equilibrium position under much less stringent combinations of the material constants. As a result, the so-called trapping mechanism of dislocations is more likely to take place in the three-phase model. Also, the analysis and calculation show that in the three-phase model the orientation of Burgers vector has only limited influence on the stability of dislocation. This behavior is pronouncedly different from that predicted by the two-phase model.

The numerical simulation for a 3D two-phase anisotropic medium based on BISQ model

2008 ◽  
Vol 5 (1) ◽  
pp. 24-34 ◽  
Author(s):  
Zhejiang Wang ◽  
Qiaodeng He ◽  
Deli Wang
Keyword(s):  
Numerical Simulation ◽  
Anisotropic Medium ◽  
Two Phase ◽  
Bisq Model

Seismic waves in cracked two-phase anisotropic medium with fourfold rotation symmetry

2000 ◽  
Vol 13 (3) ◽  
pp. 306-315
Author(s):  
Feng De-yi ◽  
Nie Yong-an ◽  
Yao Lan-yu ◽  
Liu Xi-lan ◽  
Jiang Chun
Keyword(s):  
Anisotropic Medium ◽  
Seismic Waves ◽  
Two Phase ◽  
Rotation Symmetry
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