Research Papers

Thermal-Stress Ratchet Mechanism in Pressure Vessels

[+] Author and Article Information
D. R. Miller

Knolls Atomic Power Laboratory, General Electric Company, Schenectady, N. Y.

J. Basic Eng 81(2), 190-194 (Jun 01, 1959) (5 pages) doi:10.1115/1.4008415 History: Received August 04, 1958; Published June 01, 1959; Online February 20, 2019


The combination of cyclic thermal stresses and sustained internal pressure in a vessel is shown to be a source of progressive expansion of the vessel if the stresses are sufficiently high. Criteria presented allow determination of limits to be imposed on stresses in order to prevent progressive expansion or to allow estimation of the expansion per cycle where stresses are sufficient to produce growth. The effect of strain-hardening of the metal on progressive reduction of the growth rate is discussed.

Copyright © 1959 by ASME
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