CRACK INITIATION PROCESS FOR SEMI-CIRCULAR NOTCHED PLATE IN CREEP-FATIGUE TEST AT ELEVATED TEMPERATURE

被引：0
|
作者：
Watanabe, Osamu [1 ]
Kawasaki, Nobuchika
Bubphachot, Bopit [1 ]
Kasahara, Naoto
机构：
[1] Univ Tsukuba, Dept Engn Mech & Energy, Tsukuba, Ibaraki 3058573, Japan
来源：
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, VOL 3 | 2009年
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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：
Crack initiation and propagation In creep-fatigue test were observed on semi-circular notched plates at elevated temperature by the CCD video camera. Test specimens are made of SUS304 stainless steel, and temperature is kept to be 550 degrees C, and geometry of the semi-circular plate specimens are changed by diameter size of the hole. Photographs of all cycles were recorded to investigate crack initiation process in structural component having stress concentration and obtain number of cycle of crack initiation (N-c). The test results were compared with predictions by the Stress Redistribution Locus (SRL) method and the Neuber's rule's method.
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页码：731 / 740
页数：10
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