Effect of Transverse Restraint on Welding Residual Stress in V-Groove Butt Welding

When evaluating the safety of steel structures, welding residual stress is used as secondary load and if there any restraint, yield base material for load, regardless size restraint. Of late, members increasing with increase in use high-strength steels, proportion total during evaluation structures increasing. Therefore, it necessary to investigate effect restraint on stress, determine reasonable according apply a load. To constraint conditions thermoelastic–plastic analysis was performed different member thicknesses, stresses, sizes. The did not affect direction weld line but perpendicular line. moved tensile compression at first layer middle final layers weld. change largest