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Numerical Analysis on Surface Fractures in Two-layered Materials Subjected to Thermal Loading
li lianchong 1 * #,Tang Chun’an 2,Xing Jun 3,Liang Zhengzhao 2,Jiang Wei 3,Yang Tianhong 3,Zhao Xingdong 3
1.School of Civil & Hydraulic Engineering, Dalian University of Technology, Dalian
2.School of Civil & Hydraulic Engineering, Dalian University of Technology
3.Northeastern University
*Correspondence author
#Submitted by
Subject:
Funding: 教育部博士点基金(No.20030145002)
Opened online:29 March 2007
Accepted by: none
Citation: li lianchong,Tang Chun’an,Xing Jun.Numerical Analysis on Surface Fractures in Two-layered Materials Subjected to Thermal Loading[OL]. [29 March 2007] http://en.paper.edu.cn/en_releasepaper/content/11807
 
 
With the knowledge of heterogeneous characteristics of thermal barrier coating materials at mesoscopic level, a coupled thermo-mechanical-damage (TMD Model) model was introduced and used to numerically quantify the thermal stresses and crack development of in thermal barrier coatings (TBCs) composite subjected to decreased temperatures. The effect of different surface precrack morphologies, such as precrack length and precrack density, on an interface crack subjected to thermal loading caused by a temperature change is presented. It provides us with a more sensible physical intuition and a more accurate mathematical for optimizing the design and the processing of ceramic coatings subjected to the coupled thermal-mechanical loading
Keywords:Numerical simulation, TBCs, Heterogeneity, Damage, Failure process
 
 
 

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