Non-singular anti-plane fracture theory of two parallel cracks within non-local functionally graded piezoelectric materials

2017 ◽  
Vol 10 (1) ◽  
pp. 23-38 ◽  
Author(s):  
Hai-Tao Liu ◽  
Zhen-Gong Zhou ◽  
Jian-Guo Wu
Keyword(s):  
Piezoelectric Materials ◽  
Functionally Graded ◽  
Parallel Cracks ◽  
Functionally Graded Piezoelectric Materials ◽  
Fracture Theory ◽  
Two Parallel Cracks ◽  
Non Local ◽  
Functionally Graded Piezoelectric

The Non-Local Theory Solution of a Crack in the Functionally Graded Piezoelectric Materials Subjected to the Harmonic Anti-Plane Shear Stress Waves

2007 ◽  
Vol 353-358 ◽  
pp. 258-262
Author(s):  
Zhen Gong Zhou ◽  
Lin Zhi Wu
Keyword(s):  
Shear Stress ◽  
Piezoelectric Materials ◽  
Electric Displacement ◽  
Stress Waves ◽  
Functionally Graded ◽  
Local Theory ◽  
Plane Shear ◽  
Functionally Graded Piezoelectric Materials ◽  
Non Local ◽  
Functionally Graded Piezoelectric

In this paper, the non-local theory of elasticity was applied to obtain the dynamic behavior of a Griffith crack in functionally graded piezoelectric materials under the harmonic anti-plane shear stress waves. The problem can be solved with the help of a pair of dual integral equations. Unlike the classical elasticity solutions, it is found that no stress and electric displacement singularities are present at the crack tips, thus allows us to use the maximum stress as a fracture criterion.

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