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RESEARCH PAPERS

Estimation of Elastic Follow-Up Behavior on 18Cr-8Ni Steel Using Simplified Inelastic Analysis

[+] Author and Article Information
K. I. Kobayashi

Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263, Japan

Y. Saitoh

Nuclear Engineering Division, Toshiba Corporation, Chiyoda-ku, Tokyo, Japan

T. Udoguchi

The High Pressure Gas Safety Institute of Japan, Minato-ku, Tokyo, Japan

J. Pressure Vessel Technol 116(2), 136-140 (May 01, 1994) (5 pages) doi:10.1115/1.2929567 History: Received March 11, 1992; Revised January 19, 1994; Online June 17, 2008

Abstract

Elastic follow-up behavior was estimated using simplified inelastic methods newly developed, where only a constitutive equation of creep and a triangle of elastic follow-up were employed in the analysis. Then, uniaxial cyclic elastic follow-up tests were performed on an austenitic stainless steel SUS 304 at 700°C, and test results were compared with analyses. Since most of the starting points of elastic follow-up tests in the present experiments were beyond the elastic limit of the test material, the triangle of elastic follow-up had to be modified in the analyses. As a consequence, experimental results of elastic follow-up behavior for the first cycle agreed well with those analytically determined. Moreover, the test results obtained in subsequent cycles were found conservative compared with an extension of analyses that used the data obtained in the first cycle of cyclic test.

Copyright © 1994 by The American Society of Mechanical Engineers
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