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PRESSURE VESSEL AND PIPING CODES

Piping Stress-Strain Correlation for Seismic Loading

[+] Author and Article Information
G. Stawniczy

Southern California Edison, Rosemead, Calif. 91770

W. R. Bak, G. Hau

Impell Corporation, Walnut Creek, Calif. 94598

J. Pressure Vessel Technol 110(4), 444-450 (Nov 01, 1988) (7 pages) doi:10.1115/1.3265627 History: Received May 06, 1988; Online November 05, 2009

Abstract

This paper establishes limits on piping material strains for ASME Boiler and Pressure Vessel Code Level D loadings that ensure a limitation of deformation and provide suitable safety margins. In establishing the strain limits, potential piping failure modes due to compressive wrinkling and low-cycle fatigue are considered. A stress-strain correlation methodology to convert linear, elastically calculated Code Class 2 and 3 equation (9)-Level D stresses to strains is established. This correlation is based on the fatigue evaluation procedure of the Code and is verified by comparison with test results. A detailed discussion of test results compared with the stress-strain correlation methodology is also presented.

Copyright © 1988 by ASME
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