海洋工程装备与技术 ›› 2014, Vol. 1 ›› Issue (2): 129-135.

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导管架管节点裂纹的断裂评估和疲劳评估方法

尹彦坤   

  1. 湛江南海西部石油勘察设计有限公司,广东 湛江 524057
  • 收稿日期:2014-05-29 出版日期:2014-03-29 发布日期:2017-12-07
  • 作者简介:

    尹彦坤(1980-),男,工程师,主要从事海洋石油固定式平台结构设计方面的研究.

Fracture Assessment and Fatigue Assessment of Jacket Tubular Joints

Yan-kun YIN   

  1. Zhanjiang Nanhai West Oil Survey & Design Co.,Ltd., Zhanjiang, Guangdong 524057, China
  • Received:2014-05-29 Online:2014-03-29 Published:2017-12-07

摘要:

目前海洋油气研究中对导管架管节点的疲劳设计和校核,主要采用应力-寿命(S-N)曲线的方法,断裂力学方法的研究和应用较少.系统地介绍了断裂力学的基础理论,ECA评估,裂纹扩展率以及管节点评估方法和流程.最后通过应用JPEFA软件进行的评估实例,介绍了评估过程.

关键词: 海洋油气工程, 管节点, 疲劳, 断裂力学, ECA

Abstract:

The design and assessment of jacket tubular joints are usually performed based on the stress-lifetime (S-N) curve in Chinese ocean oil and gas engineering projects, while the fracture mechanics methods are rarely employed. This article describes the basic theory of fracture mechanics, ECA, fatigue crack growth law and general assessment procedure, and then gives an assessment example by JPEFA program.

Key words: ocean oil and gas engineering, tubular joint, fatigue assessment, fracture mechanics, ECA

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