Fatigue crack growth and fracture toughness of 5083-O aluminum alloy

Conference · Tue Dec 31 23:00:00 EST 1974 · Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States)

OSTI ID:7264681

Argy, G ^[1]; Paris, P C; Shaw, F

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1. Societe Technigaz, Maurepas, France

Certain material properties of 5083-O 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 K/sub c/ for 2-in.-thick plate obtained from center-cracked specimens at room temperature and from compact tension specimens at both room temperature and -260/sup 0/F and static and dynamic loading are presented. For the latter specimens, R-curves used in the determination of K/sub c/ values are also given. Finally, K/sub Ic/ 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.

• OSTI ID: 7264681
• Journal Information: Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States), Journal Name: Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States) Vol. 579; ISSN ASTTA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
CONTAINERS
CRACKS
ENERGY SOURCES
FATIGUE
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LIQUEFIED NATURAL GAS
LOW TEMPERATURE
MECHANICAL PROPERTIES
NATURAL GAS
SHIPS
TANKER SHIPS
TANKS
TRANSPORT