ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Analytical studies were made on effect of size and location of a weld defect on fatiguelife for argon-arc welded titanium alloy joint. In the analyses, a weld defect was assumed as aninitial crack, and the crack growth life was taken as total fatigue life. By using the Isida andNoguchi’s stress intensity factor solution for a plate containing an embedded elliptical subsurfacecrack under tension, the life prediction code FASTRAN3.9 was revised. A small crack methodologybased on the plasticity-induced crack-closure concept and the effective stress intensity factor range,[removed info]Keff , was used to predict the total fatigue life of welded joint, and to study the effect of the sizeand location of weld defect on fatigue life by means of the revised FASTRAN3.9 code. Limitedamounts of experimental data were used to make comparison with the predictions. The predictedfatigue lives are in reasonable agreement with experiments, and the effect of both the size andlocation of the weld defect on fatigue life was found to be significant
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.121.pdf
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