Implications of Stress Dependency of the Thermal Expansion Coefficient on Thermal Buckling

[+] Author and Article Information
C. W. Bert, C. Fu

School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019-0601

J. Pressure Vessel Technol 114(2), 189-192 (May 01, 1992) (4 pages) doi:10.1115/1.2929028 History: Received May 31, 1991; Revised September 23, 1991; Online June 17, 2008


A thermosolid mechanics analysis based on sound thermodynamic and mechanical principles is derived for a thermoelastic solid in which the elastic coefficient is temperature-dependent, and thus the TEC (thermal expansion coefficient) must be stress-dependent. The theory is applied to the case of slender elastic members with full axial restraint and subjected to a uniform increase in temperature. Numerical results are presented for a wide range of materials and slenderness ratios.

Copyright © 1992 by The American Society of Mechanical Engineers
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