海底管道斜裂纹关键因素敏感性分析.pdf

International Journal of Mechanics Research 力学研究, 2017, 6(4), 225-233 Published Online December 2017 in Hans. /journal/ijm /10.12677/ijm.2017.64023 The Key Factors’ Sensitivity Analysis of Inclined Crack in Submarine Pipeline Yongjin Shi, Haiqing Tian Drilling Technology Research Institute, Sinopec Shengli Petroleum Engineering Co., Ltd., Dongying Shandong th st th Received: Dec. 8 , 2017; accepted: Dec. 21 , 2017; published: Dec. 28 , 2017 Abstract Inclined crack is one of the primary factors which results in accident of submarine pipeline. Based on the fracture mechanics theory, we take the numerical method to establish the pipeline model boundary conditions. Then according to the environmental conditions loading environmental load, and calculated the stress intensity factor K, from the pipeline pressure, wall thickness, crack length, pipe diameter, diameter and wall thickness ratio and so on, we also analyzed its sensitivity to pipeline strength. These have a certain foundation effect on the subsequent in-depth study of the pipe with oblique crack pressure. Keywords Submarine Pipeline, Inclined Crack, Numerical Method, Sensitivity Analysis 海底管道斜裂纹关键因素敏感性分析 史永晋，田海庆 中石化胜利石油工程有限公司钻井工艺研究院，山东 东营 收稿日期：2017年12月8 日；录用日期：2017年12月21 日；发布日期：2017年12月28 日 摘 要 斜裂纹是海底管道发生安全事故的主要因素之一。基于断裂力学理论，采用数值计算法建立管道模型边 界条件，根据环境条件加载环境载荷，从管道内压、壁厚、裂纹长度、管道直径、直径与壁厚比等方面 计算了应力强度因子K ，分析了其对管道强度的敏感性影响，对后续含斜裂纹压力管道的深入研究具有 一定的基础作用。 文章引用: 史永晋, 田海庆. 海底管道斜裂纹关键因素敏感性分析[J]. 力学研究, 2017, 6(4): 225-233. DOI: 10.12677/ijm.2017.64023 史永晋，田海庆 关键词 海底管道，斜裂纹，数值计算，敏感性分析 Copyright © 2017 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License