THE EFFECTS OF SPECIMEN SIZE ON THE VERY HIGH CYCLE FATIGUE PROPERTIES OF FV520B-I

被引：0
|
作者：
Zhang, Ming [1 ]
Wang, Weiqiang [1 ]
Li, Aiju [2 ]
机构：
[1] Shandong Univ, Sch Mech Engn, Engn & Technol Res Ctr Special Equipment Safety S, Jinan 250100, Shandong, Peoples R China
[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250100, Shandong, Peoples R China
来源：
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2015, VOL 5 | 2015年
关键词：
HIGH-STRENGTH STEELS; NON-METALLIC INCLUSIONS; QUANTITATIVE-EVALUATION; CRACK INITIATION; MECHANISM; PROPAGATION;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The authors researched the effects of specimen size on the very high cycle fatigue properties of FV520B-I through ultrasonic fatigue testing. The test results showed that the very high cycle fatigue mechanism was not changed and the fatigue properties declined as the specimen size increased. The S-N curve moved downward and the fatigue life decreased under the same stress level maybe due to the heat effects of large specimens in tests. The fatigue strength and the fatigue life were predicted by relevant models. The prediction of fatigue strength was close to test result, and the prediction of fatigue life was less effective compared with the previous prediction of small size specimen test results.
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页数：6
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