Parametric Representation of the Yield Strength-Strain Rate Behavior of A533B Steel

[+] Author and Article Information
R. Hoff, G. E. Johnson, C. A. Rubin, G. T. Hahn

Mechanical and Materials Engineering, Vanderbilt University, Nashville, Tenn. 37235

J. Pressure Vessel Technol 105(4), 316-319 (Nov 01, 1983) (4 pages) doi:10.1115/1.3264287 History: Received March 07, 1983; Revised July 21, 1983; Online November 05, 2009


A nonlinear programming technique to estimate the parameters for a temperature normalized version of the Malvern equation is presented. The general conjugate gradient algorithm is used to minimize a least-squares function formulated from data for A533B steel. A constrained solution (which provides preferential treatment for a particular data point) is also given. The results satisfactorily represent experimental data over a temperature range from −73C to 260C. The approach is well suited to design applications where data at a specific temperature of interest are limited or nonexistent.

Copyright © 1983 by ASME
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