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http://dx.doi.org/10.15207/JKCS.2014.5.1.001

Vibration Fatigue Analysis of Spot Welded Component considering Change of Stiffness due to Fatigue Damage  

Kang, Ki-Weon (Department of Mechanical Engineering, Kunsan National University)
Publication Information
Journal of the Korea Convergence Society / v.5, no.1, 2014 , pp. 1-8 More about this Journal
Abstract
The purpose of this paper was to evaluate the fatigue life to apply the vibration fatigue analysis considering the stiffness change of the spot welding due to fatigue damage accumulation. For this, the mechanical and fatigue properties of base and spot welded standard specimens were obtained through the tensile and constant amplitude fatigue test. The transfer function of the spot-welded structure was obtained from the frequency response analysis and fatigue analyisis was performed under the condition of PSD=0.11. A vibration fatigue analysis that considered changes in the frequency response due to the fatigue damage that is, failure of some wleding point was conducted on spot-welded structure. The fatigue life of the spot-welded structure was determined by combining the transfer function, the S-N curve of the tensile-shear spot-welded joint and the input PSD.
Keywords
Spot-welded structure; Frequency response analysis; Vibration fatigue analysis; Fatigue life;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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