Research on Crack-propagation Life for Perforated Ship Stiffened Plate

被引：0
|
作者：
Dong, Qin [1 ]
Yang, Ping [2 ]
Deng, Junlin [1 ]
Wang, Dan [1 ]
机构：
[1] Wuhan Univ Technol, Sch Transportat, Naval Architecture Ocean & Struct Engn, Wuhan, Hubei, Peoples R China
[2] Wuhan Univ Technol, Minist Educ, Key Lab High Performance Ship Technol, Wuhan, Hubei, Peoples R China
来源：
3RD INTERNATIONAL CONFERENCE ON TRANSPORTATION INFORMATION AND SAFETY (ICTIS 2015) | 2015年
关键词：
perforated stiffened plate; crack propagation life; VCCT; finite element analysis; GROWTH;
D O I：
暂无
中图分类号：
U [交通运输];
学科分类号：
08 ; 0823 ;
摘要：
Perforated ship stiffened plate is the basic component in ship and ocean engineering and is of great importance to study the fatigue crack propagation life due to cyclic loading. To evaluate the safety of ship stiffened plate based on the fatigue crack propagation method, the key issue is to study the crack propagation rate for stiffened plate subjected to cyclic loading. In this paper, the fatigue crack propagation life has been calculated using elasto-plastic theory and Paris formula. The virtual crack closure technique (VCCT) was used to research crack propagation life of stiffened plate, by means of calculating the energy release rate and with the method of meshing division on crack propagation path to simulate crack propagation process. The finite element analysis software MSC. Marc was applied on fatigue crack propagation life for stiffened plate taken into account the influence of stiffener. It has been found that stiffener can significantly reduce the crack propagation life.
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页码：822 / 825
页数：4
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