A Simple Specimen for the Determination of Elastic-Plastic Fracture Mechanics Parameters on Hollow Cylinders

[+] Author and Article Information
E. Roos

Staatliche Materialprüfungsanstalt (MPA), University of Stuttgart, Pfaffenwaldring, Stuttgart, Federal Republic of Germany

J. Pressure Vessel Technol 111(3), 252-258 (Aug 01, 1989) (7 pages) doi:10.1115/1.3265672 History: Received June 01, 1987; Revised February 28, 1989; Online November 05, 2009


Functions have been derived for a linear-elastic fracture mechanics specimen of an arc-shape, which because of this shape, can be removed relatively easily from pipes or cylindrical components. These specimens can be used for determining crack resistance curves using the J -integral so that, even for thinner components, it is relatively simple to obtain crack growth laws with crack propagation direction over the wall thickness. The ductile fracture mechanics characteristics determined on arc-shaped specimens corresponds well with the values determined on side-grooved CT-25 specimens.

Copyright © 1989 by ASME
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