The Analysis of Longitudinal Shrinkage in Butt Weld Joint

In this research longitudinal shrinkage of two steel plates with identical thickness that arejoint together through butt welding and another steel plate with bead welding. this study begins withthe introduction of a model, in which the thermoelastoplastic zones near the weld line is simulatedwith a thermoelastoplastic flat bar, and full-elastic areas beyond the weld line is simulated with a fullelastic springs, by proposing the physical terms of the model and favorite presumptions, the relatedequations are solved and eventually the conclusion is a relation which can be used to calculate theamount of longitudinal shrinkage with acceptable accuracy.