Effect of Various Factors on Transverse Shrinkage under Butt Welding

Abstract

In this report, the effect various factors on welding deformation is investigated in order to predict the transverse deformation in high speed FCB one side butt welding of large steel plates. To calssify the problem with respect to the size and the welding condition, the welding on small laboratory specimen and FCB welding of large plate are compared based on governing parameters derived from similarity rule. Further to clarify the effect of the governing parameters on the welding deformation, serial transient thermal-elastic-plastic FEM analyses are performed. In case of small specimen, the validity of the empirical formula proposed by Satoh and Terasaki is examined. Based on the computed results, the effects of the welding conditions, the size of plate and the tab are summarized.