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RESEARCH PAPERS: Heat Conduction

Solution of the Inverse Heat Conduction Problem From Thermal Strain Measurements

[+] Author and Article Information
G. Blanc, M. Raynaud

Centre de Thermique, INSA de LYON-ESA CNRS 5008, Bât. 404, 20 av. A. Einstein, 69621 Villeurbanne Cedex, France

J. Heat Transfer 118(4), 842-849 (Nov 01, 1996) (8 pages) doi:10.1115/1.2822579 History: Received January 05, 1996; Revised June 12, 1996; Online December 05, 2007

Abstract

Another approach for the solution of the inverse heat conduction problem is presented. The unknown boundary conditions are recovered from thermal strain and temperature measurements instead of temperature measurements only. It is required to calculate both the temperature field and the strains induced by this field. The sensitivity coefficient analysis and the results of two benchmark test cases show that it is possible to recover higher temporal frequencies when the inversion is done from strains instead of temperatures. An experimental setup was specially designed to validate the numerical results. The numerical predictions are verified. Special attention is given to the strain gage measurements.

Copyright © 1996 by The American Society of Mechanical Engineers
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