Recent Work On The Stress Dependence Of The Thermoelastic Parameter

A. K. Wong; J. G. Sparrow

doi:10.1117/12.967420

1 January 1987 Recent Work On The Stress Dependence Of The Thermoelastic Parameter

A. K. Wong, J. G. Sparrow

Proceedings Volume 0817, Optomechanical Systems Engineering; (1987) https://doi.org/10.1117/12.967420
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

In an earlier paper, a revised theory of the thermoelastic effect was presented which offers an explanation of the mean stress dependence of the thermoelastic parameter. Further experimental results are presented here to validate this theory, and to demonstrate that the predicted higher harmonic thermal response of a body under a single frequency excitation may be observed and measured. The presence of this higher harmonic response is due to the weak quadratic nature of the stress temperature relationship. It is suggested that the ability to accurately measure this component may be the key to making practical residual stress measurements using this theory.

Citation Download Citation

A. K. Wong and J. G. Sparrow "Recent Work On The Stress Dependence Of The Thermoelastic Parameter", Proc. SPIE 0817, Optomechanical Systems Engineering, (1 January 1987); https://doi.org/10.1117/12.967420

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