Development of Stress Intensity Factor Solutions for Surface and Embedded Cracks in API 579
WRC Bulletin 471 -- MAY 2002
Ted L. Anderson
Gregory Thorwald
Daniel J. Revelle
David A. Osage
Jeremy L. Janelle
Matthew E. Fuhry
The Bulletin presents a comprehensive numerical study in which a large number of Mode I stress intensity factor ( ) solutions for cracks in plates and shells were generated for inclusion in the American Petroleum Institute (API) Recommended Practice on Fitness for Service (RP 579). A series of 2D and 3D finite element analyses were performed on plates, cylinders, and spheres containing surface cracks and buried cracks. A wide range of flaw aspect ratios at radius/thickness ratios were considered. The results of these analyses are tabulated.
The Bulletin also describes a weight function methodology in which solutions for arbitrary through-wall stress distributions can be derived for surface cracks in plates and shells. The weight function for a given geometry and crack size is derived from reference solutions for uniform and linear crack-face pressure. The necessary reference solutions for surface cracks in plates, cylinders and spheres are provided.
ISSN: 0043-2326
ISBN: 1-58145-478-3
Library of Congress Catalog Card Number: 85-647116
Number of Pages: 79
The price of WRC Bulletin 471 – MAY 2002 is $US 125.00 per copy plus $US 5.00 for U. S. and Canada for postage and handling and $US 10.00 for other locations for postage and handling.
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