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本报告简明地介绍了用应力严重系数法预计常幅载荷下结构连接件的寿命的方法;介绍了基于应力严重系数概念确定α、β系数的方法;通过试验拟合导出考虑擦伤影响的方法;同时,通过一百多个铆接件的疲劳试验验证该方法的可靠性。
This report provides a brief introduction to the method of predicting the service life of structural connectors under constant amplitude load using the method of stress severity factor. The method of determining α and β coefficients based on the concept of stress severity factor is introduced. The method of considering the influence of abrasion At the same time, the reliability of the method is verified by the fatigue test of over one hundred rivets.