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Practical Considerations for Thermal Stresses Induced by Surface Heating
Volume 44 · Number 1 · July 2003 · Pages 101-105
Technical Paper · Fusion Energy - IFE Chamber Technology
James P. Blanchard
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Rapid surface heating can induce large stresses in solids. A relatively simple model, assuming full constraint in two dimensions and no constraint in the third dimension, can adequately model stresses in a wide variety of situations. This paper derives this simple model, and supports it with criteria for its validity. Phenomena that are considered include non-zero penetration depths for the heat deposition, spatial non-uniformity in the surface heating, and elastic waves. Models for each of these cases, using simplified geometries, are used to develop quantitative limits for their applicability.
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