The fatigue strength of standard welded joint and actual welded joint is analyzed by nominal stress method and hot spot stress method respectively,and the difference of stress and fatigue life obtained by the two methods is studied.The analysis results show that the nominal stress method is simple to calculate,but the life result obtained when the stress of the joint is complex is too large,and the hot spot stress method can reflect the local stress of the joint,and the calculated life is closer to the actual life.
NETL
NSTL
万方数据
