Finite element simulation of residual stress of double-ceramic-layer La2Zr2O7/8YSZ thermal barrier coatings using birth and death element technique

2012 ◽  
Vol 53 (1) ◽  
pp. 117-127 ◽  
Author(s):  
L. Wang ◽  
Y. Wang ◽  
X.G. Sun ◽  
J.Q. He ◽  
Z.Y. Pan ◽  
...  
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Thermal Barrier Coatings ◽  
Ceramic Layer ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Element Simulation ◽  
Element Technique

Relation between Concave Cone 3 Dimension Topography and Residual Stress in Thermal Barrier Coatings

2011 ◽  
Vol 291-294 ◽  
pp. 172-175
Author(s):  
Zhi Yong Han ◽  
Huan Wang
Keyword(s):  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Compressive Stress ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Barrier Coating ◽  
Stress Changes ◽  
Unit Stress

Considering the concave cone 3 dimension interface topography unit, the distribution of residual stress in thermal barrier coating was calculated using ABAQUS soft by finite element method. The calculating result shows that the residual stress is affected by interface topography unit obviously. Compressive stress exists in concave cone topography unit. Stress concentrates in boundary of topography unit and reaches maximal value at the lowest place of the topography. Compressive stress changes with the size of topography unit and the space between two topography units distinctly.

Sign in / Sign up

Export Citation Format

Share Document