Test of Thick Vessel with a Flaw in Residual Stress Field

[+] Author and Article Information
R. H. Bryan, P. P. Holz, J. G. Merkle, G. D. Whitman

Oak Ridge National Laboratory, Oak Ridge, Tenn. 37830

S. K. Iskander

Computer Sciences Division, Union Carbide Corporation, Nuclear Division, Oak Ridge, Tenn. 37830

J. Pressure Vessel Technol 103(1), 85-93 (Feb 01, 1981) (9 pages) doi:10.1115/1.3263374 History: Received February 13, 1979; Revised May 30, 1980; Online November 05, 2009


A 152-mm-thick cylindrical test vessel fabricated of A533, grade B, class 1 steel, was pressurized to failure at −23°C. The vessel contained a fatigue-sharpened notch adjacent to a half-bead weld repair that had not been stress relieved. Residual stresses and fracture toughnesses were determined before the pressure test by measurements on a prototypic weld, and fracture predictions were made by linear elastic fracture analysis. Predictions agreed well with test results, demonstrating the important influence of high residual stresses on fracture behavior.

Copyright © 1981 by ASME
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