On some numerical methods for the solution of the plane elasticity problem for bodies with cracks by means of singular integral equations

1981 ◽  
Vol 17 (4) ◽  
pp. 381-388 ◽  
Author(s):  
A. V. Boiko ◽  
L. N. Karpenko
Keyword(s):  
Numerical Methods ◽  
Integral Equations ◽  
Singular Integral ◽  
Singular Integral Equations ◽  
Plane Elasticity ◽  
Elasticity Problem ◽  
Plane Elasticity Problem

Interaction between a Crack and an Isotropic Tri-Material Media in Anti-Plane Elasticity

2014 ◽  
Vol 493 ◽  
pp. 378-382
Author(s):  
Alief Wikarta ◽  
Ching Kong Chao
Keyword(s):  
Stress Intensity ◽  
Singular Integral ◽  
Stress Intensity Factors ◽  
Singular Integral Equations ◽  
Plane Elasticity ◽  
Elasticity Problem ◽  
Enhancement Effect ◽  
Intensity Factors ◽  
Mode Iii ◽  
Plane Elasticity Problem

Solution of a crack interacting with a tri-material under a remote shear load for anti-plane elasticity problem is considered in this paper. The main purpose of this work is to study the interaction between a crack and a tri-material for anti-plane elasticity problem. This can be achieved by determination of the stress intensity factors that allow the characterization of this interaction from the point of view of linear elastic fracture mechanics. The proposed method is based on complex variable solution of a screw dislocation together with logarithmic singular integral equations. The singular integral equation is then solved numerically by modeling a crack in place of several segments. Some numerical results are performed to show the effects of material property combinations and geometric parameters on the normalized mode-III stress intensity factors. The results show that the stiffer materials may always give retardation effect on stress intensity factors when a crack approaching interfaces. On the other hand, the softer materials may always give enhancement effect on stress intensity factors.

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