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Record Details

Record 58 of 52864
A test procedure for determining the influence of stress ratio on fatigue crack growth
Author and Affiliation:
Fitzgerald, J. H.(Northrop Corp., Northrop Norair, Hawthorne, Calif., United States)
Wei, R. P.(Lehigh University, Bethlehem, Pa., United States)
Abstract: A test procedure is outlined by which the rate of fatigue crack growth over a range of stress ratios and stress intensities can be determined expeditiously using a small number of specimens. This procedure was developed to avoid or circumvent the effects of load interactions on fatigue crack growth, and was used to develop data on a mill annealed Ti-6Al-4V alloy plate. Experimental data suggest that the rates of fatigue crack growth among the various stress ratios may be correlated in terms of an effective stress intensity range at given values of K max. This procedure is not to be used, however, for determining the corrosion fatigue crack growth characteristics of alloys when nonsteady-state effects are significant.
Publication Date: Mar 01, 1974
Document ID:
19740042966
(Acquired Dec 04, 1995)
Accession Number: 74A25716
Subject Category: MATERIALS, METALLIC
Document Type: Journal Article
Publication Information: Journal of Testing and Evaluation; 2; Mar. 197
Publisher Information: United States
Contract/Grant/Task Num: NGL-39-007-040
Financial Sponsor: NASA; United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CRACK PROPAGATION; FATIGUE TESTS; METAL FATIGUE; STRESS RATIO; TITANIUM ALLOYS; ALUMINUM ALLOYS; ANNEALING; CORROSION RESISTANCE; CYCLIC LOADS; FATIGUE LIFE; METAL PLATES; STRESS DISTRIBUTION; VANADIUM ALLOYS
Imprint And Other Notes: Journal of Testing and Evaluation, vol. 2, Mar. 1974, p. 67-70.
Miscellaneous Notes: p. 67-70
Availability Source: Other Sources
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