scholarly journals Two inhomogeneities of irregular shape with internal uniform stress fields interacting with a screw dislocation

2016 ◽  
Vol 344 (7) ◽  
pp. 532-538 ◽  
Author(s):  
Xu Wang ◽  
Peter Schiavone
Keyword(s):  
Screw Dislocation ◽  
Irregular Shape ◽  
Stress Fields ◽  
Uniform Stress

scholarly journals Novel cloaking lamellar structures for a screw dislocation dipole, a circular Eshelby inclusion and a concentrated couple

2020 ◽  
Vol 476 (2241) ◽  
pp. 20200095
Author(s):  
Xu Wang ◽  
Peter Schiavone
Keyword(s):  
Conformal Mapping ◽  
Screw Dislocation ◽  
Lamellar Structure ◽  
Stress Fields ◽  
Uniform Stress ◽  
Dislocation Dipole ◽  
Lamellar Structures ◽  
Eshelby Inclusion ◽  
Mapping Techniques ◽  
Concentrated Couple

Using conformal mapping techniques, we design novel lamellar structures which cloak the influence of any one of a screw dislocation dipole, a circular Eshelby inclusion or a concentrated couple. The lamellar structure is composed of two half-planes bonded through a middle coating with a variable thickness within which is located either the dislocation dipole, the circular Eshelby inclusion or the concentrated couple. The Eshelby inclusion undergoes either uniform anti-plane eigenstrains or uniform in-plane volumetric eigenstrains. As a result, the influence of any one of the dislocation dipole, the circular Eshelby inclusion or the concentrated couple is cloaked in that their presence will not disturb the prescribed uniform stress fields in both surrounding half-planes.

Displacement threshold energy change in uniform stress fields

1986 ◽  
Vol 135 (2) ◽  
pp. K113-K117
Author(s):  
V. V. Kirsanov ◽  
E. M. Kislitsina
Keyword(s):  
Threshold Energy ◽  
Energy Change ◽  
Stress Fields ◽  
Uniform Stress ◽  
Displacement Threshold

Dislocation distributions in non-uniform stress fields

1990 ◽  
Vol 130 (2) ◽  
pp. 139-150 ◽  
Author(s):  
Xiaoyu Hu ◽  
H. Margolin
Keyword(s):  
Stress Fields ◽  
Uniform Stress
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