ASME Task Group Report on Primary Stress

[+] Author and Article Information
T. P. Pastor

Codes and Standards Department, The Hartford Steam Boiler Inspection, and Insurance Company, Hartford, CT 06162-5024

J. Hechmer

Nuclear Equipment Division, Babcock and Wilcox Company, P.O. Box 271, 91 Stirling Avenue, Barberton, OH 44203

J. Pressure Vessel Technol 119(1), 61-67 (Feb 01, 1997) (7 pages) doi:10.1115/1.2842268 History: Received August 25, 1995; Revised April 03, 1996; Online February 11, 2008


This paper considers the subject of primary stress as applied in pressure vessel design carried out in accordance with the ASME Boiler and Pressure Vessel Code (1992). The paper is the result of discussions held by members of the Task Group on Primary Stress. Specific subjects discussed include methods for calculating primary stresses, the ASME limits on primary stresses and their meaning, use of the Code stress classification table in pressure vessel design, and commentary on the use of state-of-the-art analysis techniques to design pressure vessels and satisfy Code primary stress limits. A modified definition for primary stress is given, and examples for evaluating primary stresses for different geometries is provided.

Copyright © 1997 by The American Society of Mechanical Engineers
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