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随着产品设计革命运动的开展,和钢铁产品革命运动的进行,新的机械产品的设计和新的钢铁产品系列的建立都需大量的机械性能数据,特别是表征零件和材料的疲劳破坏抗力的疲劳强度数据。最近几年来,各个研究单位、工厂与学校都开展了疲劳强度的试验研究工作,积累了大量的疲劳强度数据。但是,由于疲劳损坏的局部性,疲劳试验所得的数据受试样的制备及试验条件的影响极大。由于各个单位进行疲劳强度研究时的试样制备和试验条件的不一致,试验所得的数据就缺乏对比价值;甚至在同一单位,由于试样的制备和试验条件不一致,其所得的数据也不易对比。
With the revolutionary design revolution and the revolution in steel products, the design of new mechanical products and the establishment of new steel product lines require a great deal of mechanical performance data, especially to characterize the fatigue-breaking resistance of parts and materials Fatigue strength data. In recent years, various research institutes, factories and schools have carried out experimental research on fatigue strength, and accumulated a large amount of fatigue strength data. However, due to the localized fatigue damage, the fatigue test data obtained by the preparation of the sample and test conditions greatly affected. Due to inconsistencies in the sample preparation and test conditions at the fatigue strength studies of the various units, the data obtained from the tests lacked comparative value; even in the same unit, the data obtained were not easily comparable due to inconsistencies in the sample preparation and test conditions.