Deformation of Curved Bars With Creep

[+] Author and Article Information
J. H. Lau

Hewlett-Packard Laboratory, Palo Alto, Calif. 94303

C. K. Hu

Bechtel, San Francisco, Calif. 94103

J. Eng. Gas Turbines Power 107(1), 225-230 (Jan 01, 1985) (6 pages) doi:10.1115/1.3239687 History: Received January 12, 1984; Online October 15, 2009


An exact analysis is presented for the creep deformation of a curved bar subjected to the simultaneous actions of bending moment and axial force. Dimensionless interaction curves and charts, which relate the variables, axial force, location of neutral axis, maximum stress and strain rate, bending moment, and change in curvature rate, are also provided for engineering practice convenience. The constitutive relationship of the curved bar is described by the Prandtl-Nadai Creep Law.

Copyright © 1985 by ASME
Topics: Deformation , Creep , Force , Stress
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