Safety evaluation of high pressure vessel under corrosive and fatigue environment of sulfureted hydrogen

被引：0
|
作者：
Wang, QM [1 ]
Shan, XP [1 ]
Zhang, YL [1 ]
Zhang, W [1 ]
机构：
[1] Beijing Univ Technol, Dept Engn Mech, Beijing 100022, Peoples R China
来源：
PROGRESS IN SAFETY SCIENCE AND TECHNOLOGY, VOL 4, PTS A and B | 2004年 / 4卷
关键词：
allowable crack size; corrosive fatigue of sulfureted hydrogen; crack growth rate; probability analysis;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fatigue crack growth rate da/dN of the material 4130X steel, which is used to manufacture the high-pressure vessel, in moderate concentration (200 x 10(-6)) sulfureted hydrogen solution is studied experimentally. The equation of fatigue crack growth rate is found according to the experimental data by using Paris expression. Fatigue crack growth rate equation of 90% reliability and 90% believability is also found taking into account experimental randomicity. By using inverse inferring method, allowable crack sizes with variable crack shape are determined in certain setting inspection period to assure the safety of the vessel. And the relationship between allowable crack depth and original crack length is obtained and shown with figures which are very convenient for engineers in evaluating residual life of the pressure vessel.
引用
收藏
页码：2427 / 2431
页数：5
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