SYMPOSIA PAPER Published: 01 January 1975

Fatigue Crack Growth and Fracture Toughness of 5083-0 Aluminum Alloy


Certain material properties of 5083-0 aluminum alloy which would be of interest to designers of liquefied natural gas (LNG) tankage are presented and discussed. Fatigue crack growth rates obtained both from specimens containing a semielliptical surface flaw and from compact tension specimens are given and compared to other published data. Values of Kc for 2-in.-thick plate obtained from center-cracked specimens at room temperature and from compact tension specimens at both room temperature and -260°F and static and dynamic loading are presented. For the latter specimens, R-curves used in the determination of Kc values are also given. Finally, KIc values are estimated using the J-integral technique.

The application of these data to the design of LNG tankage is discussed, paying particular attention to conditions required to assure “leak before failure” behavior.

Author Information

Argy, G
Societe Technigaz, Maurepas, France
Paris, PC
Del Research Corporation, Hellertown, Pa.
Shaw, F
American Technigaz, Incorporated, Boston, Mass.
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Developed by Committee: E50
Pages: 96–130
DOI: 10.1520/STP29157S
ISBN-EB: 978-0-8031-4659-4
ISBN-13: 978-0-8031-0538-6