Fatigue life improvement of scallops in ships/FPSOs using finite element analysis

被引：0
|
作者：
Norman, M [1 ]
Lotsberg, I [1 ]
机构：
[1] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
来源：
PROCEEDINGS OF THE ELEVENTH (2001) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL IV | 2001年
关键词：
fatigue; floating production vessels; scallop; ship structural detail; finite element analysis;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Floating production vessels are planned to mainly be on the same location without scheduling any shutdowns for maintenance and repair. This implies stricter requirements to a reliable fatigue design than the standard procedure that is used by the ship industry, with inspection and repair every fifth year. One of the areas that has been subject to improved fatigue design requirements is scallops in a three perpendicular plate intersection. A general model applicable for several structural details in ships is used in the present study. Four different methods of calculating hot spot stress have been considered. Five different geometries of scallops have been modelled by three-dimensional 20 node isoparametric elements and analysed. The results from these analyses are presented and discussed in this paper.
引用
收藏
页码：105 / 110
页数：6
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