FATIGUE CRACK INITIATION MODEL OF TYPE 316 STAINLESS STEEL

被引：0
|
作者：
Ishizawa, Terushi [1 ]
Nakamura, Takao [1 ]
Kitada, Takanori [1 ]
机构：
[1] Osaka Univ, 2-1 Yamadaoka Suita, Osaka 5650871, Japan
来源：
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, 2016, VOL 5 | 2017年
关键词：
GROWTH;
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 fatigue tests under different conditions of strain range were conducted in air and the replica observation of fatigue cracks on specimen surface was also conducted. Using data obtained in fatigue tests, statistical dispersion of crack initiation life was quantified and modeled through an application of two parameter Weibull distribution. The relationship between strain range and two parameters (s, shape parameter and eta, scale parameter) of crack initiation model was discussed. Thereby, the applicability of crack initiation model for arbitrary strain range was shown. Furthermore, the validation of P-curve applied crack initiation model was conducted by the simulation of fatigue life.
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页数：7
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