Thermal Reliability of a Bilayer Slab Subjected to a Local Heat Source

[+] Author and Article Information
T. Elperin, G. Rudin

Department of Mechanical Engineering, The Pearlstone Center for Aeronautical Engineering Studies, Ben-Burion University of the Negev, POB 653, Beer Sheva 84105, Israel

J. Electron. Packag 116(1), 37-43 (Mar 01, 1994) (7 pages) doi:10.1115/1.2905491 History: Received May 06, 1993; Revised November 25, 1993; Online April 28, 2008


The paper considers the distribution of temperature and thermal stresses in a bilayer slab which consists of a substrate and a thin coating subjected to a local short heat pulse. The heat source is distributed uniformly over a circular spot on a surface of the coating. The temperature and thermal stresses distributions in a slab are found analytically in a closed form using Laplace and Hankel integration transforms. The analytic relation is obtained for the evaluation of components of stress tensor in a coating as a function of a Fourier number and radius of heat source.

Copyright © 1994 by The American Society of Mechanical Engineers
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