Transient Thermal Stress and Associated Natural Frequency Variations in Circular Disk Elements

[+] Author and Article Information
C. D. Mote

Carnegie Institute of Technology, Pittsburgh, Pa.

J. Eng. Ind 89(2), 265-270 (May 01, 1967) (6 pages) doi:10.1115/1.3610038 History: Received July 26, 1966; Online August 25, 2011


Most available thermal stress and associated natural frequency analyses of circular disk elements incorporate only the steady-state temperature distribution and intuitively assume that the transient is not significant. An analytical rule-of-thumb involving the calculation and test of a nondimensional number h1 is proposed for predicting conditions when the transient regime may be significantly more severe than the steady state. The number h1 = hb2 /ks a, a modified Biot number, involves disk surface heat transfer, disk conductivity, and geometry.

Copyright © 1967 by ASME
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