SYMPOSIA PAPER Published: 01 January 1992

Stress-Intensity Factors for Long Axial Outer Surface Cracks in Large Pipes


Stress-intensity factors for axial surface flaws in pipes can be sensitive to the radius to thickness ratio (R/t) of the pipe depending on the depth to thickness (a/t) and the depth to length (a/c) ratios of the crack. This study combines solutions from the literature for plates and smaller R/t pipes with several new solutions for axial outer surface (OD) cracks in R/t = 40 pipes to obtain stress-intensity factors for a/t = 0.25, 0.50, and 0.75, and a/c in the range 0 to 1. The new solutions are obtained using the finite element alternating method.

Author Information

Stonesifer, RB
Computational Mechanics, Inc., Julian, PA
Brust, FW
Battelle Memorial Institute, Columbus, OH
Leis, BN
Battelle Memorial Institute, Columbus, OH
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Developed by Committee: E08
Pages: 29–45
DOI: 10.1520/STP23695S
ISBN-EB: 978-0-8031-5193-2
ISBN-13: 978-0-8031-1440-1