Fatigue crack growth rate of thick 5083-O plate at room and low temperatures
Thick aluminum alloy 5083-O has gained wide usage in liquefied natural gas (LNG) tank construction. Fatigue crack growth rate (FCGR) characteristics are described for specimens obtained from 5083-O plate in thickness from about /sup 1///sub 2/ to 7.75 in. Data were obtained from crack propagation gages and compared with data obtained by an ultrasonic technique. Crack growth rate was measured at 75 and -320/sup 0/F. At -320/sup 0/F, FCGR appeared to be substantially lower than at 75/sup 0/F in the second stage of growth; however, in the accelerated third stage of growth, the FCGR for the two temperatures were similar. Data show that location of specimen in relation to plate thickness can affect crack growth rate, depending on the crack orientation. From crack propagation gage measurements, it was determined that thickness of compact specimens, per se, (1 to 2 in.) had no effect on growth rate.
- Research Organization:
- Kaiser Aluminum and Chemical Corp., Pleasanton, CA
- OSTI ID:
- 7264683
- 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
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Related Subjects
032000* -- Natural Gas-- Transport
Handling
& Storage
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
CONTAINERS
CRACKS
DIMENSIONS
ENERGY SOURCES
FATIGUE
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LIQUEFIED NATURAL GAS
LOW TEMPERATURE
MECHANICAL PROPERTIES
MEDIUM TEMPERATURE
NATURAL GAS
PLATES
SHIPS
STORAGE
TANKER SHIPS
TANKS
TEMPERATURE DEPENDENCE
THICKNESS
TRANSPORT