【摘要】 针对机械中应变疲劳破坏这一极为重要的问题,文中应用近年来建立的局部应力—应变分析方法,提出了动载荷造成机械零件薄弱部位应变疲劳的定量计算方法、步骤。从而改变在设计中,将少循环次短期运载上的机械零件,按静强度处理的作法,因为该方法在某些特殊情况下,是不妥当的。文中给出分析计算的实例。更多还原

【Abstract】 The strain fatigue failure is a very important problem in machinery, Thi paper presents the way and procedure for computing the amount of strain fatigte due to dynamic load at weak point of machine components by the method of partial Stress-strain analysis established in recent years. The way and procedure have corrected the impropriety in traditionary basing on condition of the machine parts under the few cyclic and short-time overload under its statical stress, an example of computation is given.更多还原