Test procedure to determine the Paris equation coefficients for crack growth rates exemplified by aluminum alloy 2024-T3

2015 ◽  
Vol 57 (10) ◽  
pp. 912-919
Author(s):  
Alexey Nikolaevich Savkin ◽  
Artem Valerievich Andronik ◽  
Ramesh Koraddi
Keyword(s):  
Aluminum Alloy ◽  
Crack Growth ◽  
Growth Rates ◽  
Test Procedure ◽  
Paris Equation ◽  
Aluminum Alloy 2024 ◽  
Crack Growth Rates ◽  
Paris Equation Coefficients

On the relation between micro- and macroscopic fatigue crack growth rates in aluminum alloy AMS 7475-T7351

2007 ◽  
Vol 142 (3-4) ◽  
pp. 233-240 ◽  
Author(s):  
C. O. F. T. Ruckert ◽  
J. R. Tarpani ◽  
W. W. Bose Filho ◽  
Dirceu Spinelli
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Rates ◽  
Crack Growth Rates

Fracture Mechanics Parameters for a 5083-0 Aluminum Alloy at Low Temperatures

1977 ◽  
Vol 99 (4) ◽  
pp. 306-312 ◽  
Author(s):  
R. L. Tobler ◽  
R. P. Reed
Keyword(s):  
Fracture Toughness ◽  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Rates ◽  
Rolling Direction ◽  
Integral Test ◽  
Alloy Plate ◽  
Crack Growth Rates

The fatigue crack growth and fracture resistance of a 5083-0 aluminum alloy plate were investigated at four temperatures in the ambient-to-cryogenic range—295, 111, 76, and 4 K. J-integral test methods were applied using compact specimens 3.17 cm thick, and the value of J required to initiate crack extension (JIc) is reported as an index of fracture toughness. The fracture toughness was orientation dependent, with anisotropy accounting for JIc variations of up to a factor of 2. For specimens having fracture planes parallel to the rolling direction, JIc increases progressively from 9 to 25 kJm−2 as temperature decreases between 295 and 4 K. In contrast, the fatigue crack growth rates (da/dN) are insensitive to specimen orientation. The fatigue crack growth rates at cryogenic temperatures are up to 10 times lower than in air at room temperature, but are virtually constant between 111 and 4 K.

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