| 海底油气外输管线的断裂和疲劳评定 |
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| 引用本文： | 王建平,霍立兴,许永泰,刘长振. 海底油气外输管线的断裂和疲劳评定[J]. 管道技术与设备, 2006, 0(6): 4-7 |
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| 作者姓名： | 王建平 霍立兴 许永泰 刘长振 |
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| 作者单位： | 1. 中国北方发动机研究所,山西,大同,037036
2. 天津大学,材料科学与工程学院,天津,300072 |
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| 摘 要： | 以旅顺—大连间海底油气外输管线为例,依据英国标准BS7910对管线铺设过程的断裂及疲劳性能进行了ECA评估,得到了不同水深、不同缺陷形式和位置及不同错边量条件下管道焊接接头部位缺陷的断裂临界尺寸和使用寿命,为海底管线铺设工程中的焊接缺陷的验收和拒收提供了依据。
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| 关 键 词： | 管线钢 疲劳寿命 |
| 文章编号： | 1004-9614（2006）06-0004-04 |
| 收稿时间： | 2006-03-07 |
| 修稿时间： | 2006-07-10 |
Fracture and Fatigue Assessment on Offshore Gas and Oil Pipeline |
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| WANG Jian-ping,HUO Li-xing,XU Yong-tai,LIU Chang-zhen. Fracture and Fatigue Assessment on Offshore Gas and Oil Pipeline[J]. Pipeline Technique and Equipment, 2006, 0(6): 4-7 |
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| Authors: | WANG Jian-ping HUO Li-xing XU Yong-tai LIU Chang-zhen |
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| Affiliation: | 1. China North Engine Research Institute, Datong 037036, China; 2. School of Material Science and Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | By taking the offshore gas and oil pipeline running between Ltishun and Dalian as an example, a critical engineering assessment was made to study the fracture and fatigue properties of pipeline during its installation based on British standard BS7910. The fracture critical dimensions and fatigue llfe of flaw in welded joints were determined under the conditions of different depths of water, various flaw types, different locations and misaliguments. The study lays a foundation for judging the acceptability of flaws. |
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| Keywords: | BS7910 ECA |
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