Using finite element program-ABAQUS,the welding residual stress of tube-to-tubesheet joint in heat exchangers had been numerically simulated.

• 利用有限元软件ABAQUS,对换热器管子与管板焊接残余应力进行数值模拟,获得了焊接接头残余应力的分布规律,比较了伸出角接头和内角接头的优劣。