SYMPOSIA PAPER Published: 01 January 1976
STP33963S

Stress Intensity Factor of a Corner Crack

Source

The alternating method for elliptical crack analysis, which is based on the combined use of a pressurized crack solution and a free surface solution, has been limited in its application due to convergence difficulties in the iteration process. By prescribing appropriate fictitious pressure on the elliptical crack surface, which protrudes into the free space, numerical convergence of the iteration was improved. As a result, the pressurized crack solution involving a third-order polynomial pressure distribution with limited use was extended to part-elliptical problems. The improved alternating procedure is then used to determine stress intensity factors in corner flaws with aspect ratios of a/b = 0.98, 0.4, and 0.2 and subjected to uniform or linearly varying pressure distributions.

Author Information

Kobayashi, AS
University of Washington, Seattle, Wash.
Enetanya, AN
University of Washington, Seattle, Wash.
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Details
Developed by Committee: E08
Pages: 477–495
DOI: 10.1520/STP33963S
ISBN-EB: 978-0-8031-4669-3
ISBN-13: 978-0-8031-0509-6