In this paper, three dimensional residual stresses due to single pass and multipass fillet welding are analyzed by thermal elastic-plastic FEM. Then,, inherenet strain distributions produced in fillet welds are described by series function. Based on the results of series function descriptions for inherent strains, a simplified distribution pattern for inherent strains is derived and described by a simple function with a very small number of unknown parameters. If these unknown parameters are to be determined by experiments, the required measurements will be greatly reduced.
Transactions of JWRI 24 (2), 123-130, 1995-12
Osaka University