Experimental Investigation of Fatigue of Thin-Walled Welded Structures of Commercial Vehicle Frames

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science

Athanassios FOKILIDIS¹  Georgios SAVAIDIS¹ 

[1] Aristotle University of Thessaloniki, Greece;

关键词: Fatigue;    welds;    finite elements;    hot spot stress;    experimental analysis;   

DOI  :  

来源: DOAJ

【 摘 要 】

The fatigue behavior of bus frame components consisting of thin-walled tube beams joined together by fillet welding has been investigated. Numerical analysis by means of finite elements and experimental stress analysis by means of strain gages explored the failure-critical locations at the weld toe. In addition, a proposal for finite element modeling in particular of the welded area, and evaluation of hot spot stresses to be used for fatigue life calculations of such thin-walled structures has been developed. The calculation results have been verified based on experimentally determined fatigue lives of the components under constant amplitude loading. A satisfactory agreement between experimental and theoretical results has been observed.

【 授权许可】

Unknown