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[1]张晓,帅健.侧向载荷作用下X90管道局部屈曲研究[J].中国安全生产科学技术,2018,14(7):135-140.[doi:10.11731/j.issn.1673-193x.2018.07.020]
　ZHANG Xiao,SHUAI Jian.Research on the local buckling of X90 pipeline under lateral load[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(7):135-140.[doi:10.11731/j.issn.1673-193x.2018.07.020]
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侧向载荷作用下X90管道局部屈曲研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年7期
页码:
135-140
栏目:
职业安全卫生管理与技术
出版日期:
2018-07-31

文章信息/Info

Title:
Research on the local buckling of X90 pipeline under lateral load
文章编号:
1673-193X(2018)-07-0135-06
作者:
张晓; 帅健
（中国石油大学（北京） 机械与储运工程学院，北京102249）
Author(s):
ZHANG Xiao; SHUAI Jian
（College of Mechanical and Transportation Engineering, China University of PetroleumBeijing, Beijing 102249，China）
关键词:
X90; 非线性有限元; 屈曲; 临界载荷
Keywords:
X90; nonlinear finite element analysis; buckling; critical load
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2018.07.020
文献标志码:
A
摘要:
为了获取X90高强度管道局部屈曲临界载荷随管道尺寸、内压及管材参数的变化规律，基于ANSYS建立了侧向载荷作用下X90管道局部屈曲有限元数值模型，分析了X90管道局部非线性屈曲模态及特点，探讨了管道参数及管材性能参数对屈曲临界载荷的影响。研究结果表明：管道屈曲临界载荷随管径及壁厚的增大而增大；随内压的增大呈现先增大后减小的趋势；随材料幂硬化指数的增大而减小，同时还会受到环向应力的影响，环向应力越大，其随幂硬化指数减小的速率越快；管材屈服强度的提高可以在一定程度上提高X90管道的抗屈曲能力。研究结果可为X90管道的设计提供理论基础和参考。
Abstract:
In order to provides theoretical basis and reference for the design of X90 pipeline , the sensitive parameters’ effects on the buckling critical load of X90 pipeline such as the pipe size, internal pressure and material parameters need to obtain. A local buckling model of X90 pipeline under the lateral load was established based on ANSYS finite element simulation method, analysed its local nonlinear buckling mode and behavior, and studied the effects of pipe parameters and material parameters on the buckling critical load . The results show that the critical load of pipeline buckling increases with the increase of pipe diameter and wall thickness; With the increase of internal pressure, the critical load increases at the initial period and then decrease; and it decreases with the increase of the yield ratio of the material, and it is also affected by the cyclic stress, and the greater the stress is, the faster it decreases. The increase of yield strength of pipeline can improve the antibuckling ability of X90 pipeline to a certain extent.

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备注/Memo:
“十二五”国家科技支撑计划课题（2015BAK16B00）
更新日期/Last Update: 2018-08-09