在没有空气腐蚀作用条件下,研究材料的疲劳寿命,可更进一步地研究疲劳破坏的性质、疲劳裂痕的形成及其发展的动力学和进行这些过程所决定的因素。目前,用于这类研究的装置,都是对试样进行重复弯曲试验。但要解决象研究疲劳裂痕的发展、铆接、焊接和其它板材连接寿命等一系 Studying the fatigue life of a material without air corrosion can further investigate the nature of fatigue failure, the formation of fatigue cracks, the dynamics of their development, and the factors that determine these processes. At present, the devices used in this type of research are all samples subjected to repeated bending tests. But to solve such as the development of research fatigue cracks, riveting, welding and other plate connection life of a series