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| 半潜式钻井平台浮箱表面裂纹前沿断裂参量和临界状态评估研究 | |
| 引用本文： | 王建军,段梦兰,黎剑波,王冬石,宋林松,李杰.半潜式钻井平台浮箱表面裂纹前沿断裂参量和临界状态评估研究[J].海洋工程,2010,28(1). |
| 作者姓名： | 王建军 段梦兰 黎剑波 王冬石 宋林松 李杰 |
| 作者单位： | 1. 中海油田服务股份有限公司,北京,101149 2. 中国石油大学(北京)海洋油气研究,中心,北京,102249;COPPE,Federal University of Rio de Janeiro,RJ 68501,Brazil 3. 复旦大学,力学与工程科学系,上海,200433 |
| 基金项目： | 中国船级社基础研究资助项目;;中海油田服务股份有限公司资助项目(02GNH05017C,D0416CS-A11C103) |
| 摘 要： | 对于半潜式钻井平台浮箱,裂纹的扩展不仅影响结构的水密性甚至可能对结构的安全产生巨大威胁,并直接决定平台的整体使用寿命。以南海某平台为研究对象,对浮箱板壳椭圆形表面裂纹前沿应力强度因子的分布规律,以及裂纹形状系数对裂纹前沿应力强度因子分布规律的影响等进行了研究。在此基础上,基于BS7910规范中‘合于使用’原则,对裂纹的临界状态进行了分析和评定,为海洋环境条件下半潜式钻井平台浮箱表面裂纹的极限尺寸研究提供了一种科学的方法。 |
| 关 键 词： | 半潜式海洋平台 表面裂纹 应力强度因子 临界状态评估 ABAQUS |
Investigation on fracture parameters of surface crack front and its engineering critical assessment for semi-submersible pontoons |
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| WANG Jian-jun,DUAN Meng-lan,LI Jian-bo,WANG Dong-shi,SONG Lin-song,LI Jie.Investigation on fracture parameters of surface crack front and its engineering critical assessment for semi-submersible pontoons[J].Ocean Engineering,2010,28(1). | |
| Authors: | WANG Jian-jun DUAN Meng-lan LI Jian-bo WANG Dong-shi SONG Lin-song LI Jie |
| Institution: | 1.China Oilfield Services Limited;Beijing 101149;China;2.Offshore Oil/Gas Research Center;China University of Petroleum;Beijing 102249;3.COPPE;Federal University of Rio de Janeiro;RJ 68501;Brazil;4.Dept.of Mechanics and Engineering;Fudan University;Shanghai 200433;China |
| Abstract: | Cracks in the platform are inevitable due to fatigue damage of structure resulting from the action of wave loads.The evaluation of the influence of the existing cracks in the platform structures has been an academic difficulty for decades.For semi-submersible platform pontoons,the propagation of the cracks not only influences the water-tightness of the pontoons,but also jeopardizes the platform.It also determines the service life of the overall structure directly.A semi-submersible platform servicing in Sou... |
| Keywords: | semi-submersible platform surface crack stress intensity factor ECA ABAQUS |
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