On the crack-tip stress singularity of interfacial cracks in transversely isotropic piezoelectric bimaterials

2003 ◽  
Vol 40 (26) ◽  
pp. 7499-7511 ◽  
Author(s):  
Z.C. Ou ◽  
Xijia Wu
Keyword(s):  
Stress Singularity ◽  
Crack Tip ◽  
Transversely Isotropic ◽  
Interfacial Cracks ◽  
Crack Tip Stress

On the Changing Order of Singularity at a Crack Tip

1977 ◽  
Vol 44 (4) ◽  
pp. 625-630 ◽  
Author(s):  
R. J. Nuismer ◽  
G. P. Sendeckyj
Keyword(s):  
Closed Form ◽  
Stress Singularity ◽  
Closed Form Solution ◽  
Crack Tip ◽  
Form Solution ◽  
Square Root ◽  
Rigid Line Inclusion ◽  
Rigid Line ◽  
Line Inclusion ◽  
Crack Tip Stress

The nature of the transition in the crack tip stress singularity from an inverse square root to an inverse fractional power as a crack tip reaches a phase boundary or a geometrical discontinuity for interface cracks is examined. This is done by analyzing the simple closed-form solution to the problem of a rigid line inclusion with one side partially debonded for the case of antiplane deformation. For this example, the crack tip stress singularity changes from an inverse square root to an inverse three-quarters power as the crack tips approach the inclusion tips (i.e., when one face of the rigid line inclusion is completely debonded). A detailed analysis, based on series expansions of the closed-form solution, is used to show how the singularity transition occurs. Moreover, the expansions indicate difficulties that may be encountered when solving such problems by approximate methods.

Constraint effects on crack tip stress fields for cracks located at the fusion line of weldments

1999 ◽  
Vol 15 (3) ◽  
pp. 275-284 ◽  
Author(s):  
C Thaulow ◽  
Z.L Zhang ◽  
M Hauge ◽  
W Burget ◽  
D Memhard
Keyword(s):  
Crack Tip ◽  
Fusion Line ◽  
Stress Fields ◽  
Constraint Effects ◽  
Crack Tip Stress
Sign in / Sign up

Export Citation Format

Share Document