Numerical Analysis on Surface Fractures in Two-Layered Materials Subjected to Thermal Loading


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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.



Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie




L. C. Li et al., "Numerical Analysis on Surface Fractures in Two-Layered Materials Subjected to Thermal Loading", Key Engineering Materials, Vols. 353-358, pp. 913-916, 2007

Online since:

September 2007




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