Effects of the Thermal Residual Stress Field on the Crack Propagation in Graded Alumina/Zirconia Ceramics

2005 ◽  
pp. 177-182 ◽  
Author(s):  
P. Vena ◽  
D. Gastaldi ◽  
R. Contro
Keyword(s):  
Residual Stress ◽  
Stress Field ◽  
Crack Propagation ◽  
Thermal Residual Stress ◽  
Residual Stress Field ◽  
Zirconia Ceramics

Effects of the Thermal Residual Stress Field on the Crack Propagation in Graded Alumina/Zirconia Ceramics

2005 ◽  
Vol 492-493 ◽  
pp. 177-182 ◽  
Author(s):  
P. Vena ◽  
D. Gastaldi ◽  
R. Contro
Keyword(s):  
Residual Stress ◽  
Stress Field ◽  
Crack Propagation ◽  
Threshold Stress ◽  
Numerical Approach ◽  
The Finite Element Method ◽  
Residual Stress Field ◽  
Zirconia Ceramics ◽  
Thermal Residual Stresses ◽  
Zirconia Composites

A numerical approach to study the crack propagation in symmetric step-wise graded Alumina/Zirconia composites subjected to a residual stress field is presented in this work. The finite element method is used to calculate the stress intensity factor for cracks developing from the surface and to determine the effects of the thermal residual stresses. The results show that a suitably conceived stacking sequence induces in the laminate a residual stress field able to provide increased toughness and reliability of the structure by making the crack propagation stable below a given threshold stress. Moreover a lower bound on stress, below which no crack propagation occurs, can be identified.

2712 SCC and Fatigue Crack Propagation Analyses on Deep Semi-Elliptical Flaws under Residual Stress Field

2013 ◽  
Vol 2013.26 (0) ◽  
pp. _2712-1_-_2712-3_
Author(s):  
Kota SUGAWARA ◽  
Hirohito KOYA ◽  
Hiroshi OKADA ◽  
Hiroshi KAWAI ◽  
Yinsheng LI ◽  
...  
Keyword(s):  
Residual Stress ◽  
Fatigue Crack ◽  
Stress Field ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Residual Stress Field
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