Journal Published Online: 01 July 1981
Volume 9, Issue 4

Curve and Fracture Toughness of Thin Sheet Materials

CODEN: JTEVAB

Abstract

Crack growth resistance R curve tests were done on center-cracked panels of three aluminum alloys. Two methods for the measurement of crack length were compared: the compliance method and the potential method. The latter gives more consistent results. It was found that the stress intensity serves as a correlation parameter for crack growth up to a limiting value of the net section stress that is equal to 0.9 times the yield strength. The fracture stress can be accurately predicted by the R curve concept.

Author Information

Schwalbe, K-H
Research Center Geesthacht (GKSS), Geesthacht, West Germany
Setz, W
German Aerospace Research Establishment (DFVLR), Linder Höhe, Köln 90, West Germany
Pages: 13
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE11226J
ISSN: 0090-3973
DOI: 10.1520/JTE11226J