由于材料的不均匀性、内部缺陷等因素,影响着构件的质量,特别是对于大尺寸构件,由于尺寸的增大而使其性能降低的可能性也增大,当然热处理和机加工误差等也是一些影响因素。水文只从纯粹的几何尺寸方面加以研究,为将小试件的疲劳试验数据应用到实际大构件的设计中,作一初步的探讨。许多结果表明:处理这类问题很大程度上取决于所采用 Due to material heterogeneity, internal defects and other factors, affecting the quality of components, especially for large-size components, due to the size increases the possibility of reducing its performance increases, of course, heat treatment and machining errors are also Some influencing factors. Hydrology only from purely geometric dimensions to be studied for the fatigue test data of small specimens applied to the actual design of large components for a preliminary study. Numerous results show that dealing with this type of problem depends very much on the adoption