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/lp/ios-press/statistical-investigation-on-strength-of-friction-welded-joints-of-0mclFa3N6J
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- Publisher
- IOS Press
- Copyright
- Copyright © 2015 IOS Press and the authors. All rights reserved
- ISSN
- 1567-2069
- eISSN
- 1875-9262
- DOI
- 10.3233/SFC-150185
- Publisher site
- See Article on Publisher Site
Abstract
AbstractTensile strength and fatigue strength of friction-welded joints of pure titanium to tough pitch copper were statistically analyzed and validated by experimental tensile and fatigue testing. In the tensile testing, it was found that the shape parameter of the Weibull distribution increased with an increase in mean value of the tensile strength and with a decrease in dispersion of the tensile strength. The shape parameter was useful for judging the suitability of the friction welding conditions. An appropriate shape parameter could be estimated by Weibull analysis from the data of 10 pieces of joint specimens. In the fatigue testing, P–S–N curves showed that the dispersion in the fatigue life distribution of the sound joint was stabilized regardless of stress level, whereas that of a poor joint dispersed as the stress level decreased. Moreover, the guarantee fatigue life of sound joints could be estimated by Weibull analysis.
Journal
Strength, Fracture and Complexity – IOS Press
Published: Oct 7, 2015