A Study for the Fatigue Failure Mode Assessment of Fillet Weldments
In this study, a methodology for the assessment of fatigue failure modes of weldments due to partial penetration weld has been carried out by using structural stress method. Structural stress calculation procedure, using shell element based on equilibrium consideration using nodal forces and moments, is employed. It is important to note that the structural stress calculation procedures for partial penetration welds can be used to determine a minimum weld leg length, beyond which, weld root failure modes can be effectively suppressed. An example study, with respect to a fillet weld leg length design, is compared with a design criterion, and they are found to be in agreement.
Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na
M. H. Kim et al., "A Study for the Fatigue Failure Mode Assessment of Fillet Weldments", Materials Science Forum, Vols. 580-582, pp. 601-604, 2008