锻压技术

双金属衬里复合管内衬塌陷失稳三维有限元研究

英文标题：3D finite element study on collapse instability for liner in bimetallic lined composite pipe

单位：1.西南石油大学油气藏地质及开发工程国家重点实验室 2.西安向阳航天材料股份有限公司 3.中国石油工程建设有限公司西南分公司

分类号：TE973

出版年,卷(期):页码：2023,48(5):287-295

摘要：

针对双金属衬里复合管的内衬塌陷失稳问题，建立了三维有限元力学模型，研究了受限内衬临界失稳载荷与后屈曲构型之间的相互关系，并将计算结果与二维平面应变有限元模型的计算结果进行了对比，最后通过实物实验评价了两种模型的适用性。结果表明：使用三维有限元模型计算的临界失稳载荷值与实验结果的相对误差为1.33%；衬管的临界失稳载荷值是缺陷敏感的，0.6%的不圆度缺陷会使其临界失稳载荷下降约50%；二维模型与三维模型（长径比L/D＞6）计算的受限内衬的临界失稳载荷值几乎无误差，但对于计算衬管的临界坍塌扩展传播压力Ppc，三维模型的计算结果更接近实验结果。建立的三维有限元力学模型可以准确地求解受限内衬的临界失稳行为，为双金属衬里复合管的内衬止屈设计、保证集输系统安全运行提供了理论依据。

Aiming at the problem of collapse and instability for liner in bimetallic lined composite pipe, a 3D finite element mechanical model was established, and the relationship between critical bucking load and post-buckling configuration of the confined liner was studied. Then, the calculated results were compared with those of the 2D plane strain finite element model. Finally, the applicability of the two models was evaluated by the physical test. The results show that the relative error between the critical instability load calculated by 3D finite element model and the test results is 1.33%, the critical buckling load value of liner pipe is sensitive to defects, and the 0.6% out-of-roundness defect can reduce the critical buckling load by about 50%. There is almost no error in the calculation of critical buckling load values of the confined liner by using 2D and 3D models (length to diameter ratio L/D>6), but for the critical collapse propagation pressure Ppc of liner pipe, the calculated results by 3D model is closer to the test results. Therefore, the established 3D finite element mechanical model can accurately solve the critical instability behavior of confined liner, which provides a theoretical basis for the buckling-stop design of liner for bimetallic lined composite pipe and ensures the safe operation of the gathering and transportation system.

基金项目：

国家自然科学基金面上资助项目(51974271)；中石油CPECC资助项目（CPECC2019KJ13）

作者简介：谷天平（1994-），男，博士研究生,E-mail：gutianping005@163.com;通信作者：练章华（1964-），男，博士，教授,E-mail：cwctlzh@swpu.edu.cn

参考文献：

[1]杨专钊, 李安强,魏亚秋.双金属复合管标准发展现状及存在的问题[J].油气储运,2020,39(4):395-399.

Yang Z Z,Li A Q,Wei Y Q. Development status and existing problems of standards for bimetal composite pipe [J]. Oil & Gas Storage and Transportation,2020,39(4):395-399.

[2]张洋, 王天宝,孙洁,等.T2/20双金属复合管的弯曲变形规律及参数优化[J].锻压技术,2022,47(10):176-185.

Zhang Y,Wang T B,Sun J,et al. Bending deformation rules and parameters optimization on T2/20 bimetal clad tube [J]. Forging & Stamping Technology,2022,47(10):176-185.

[3]谷天平, 练章华,陈俊文,等.双金属复合管线应力分析中当量折算模型的建立与应用[J].中国安全生产科学技术,2022,18(10):123-129.

Gu T P,Lian Z H,Chen J W,et al. Establishment and application of equivalent conversion model in stress analysis of bimetal clad pipeline[J].Journal of Safety Science and Technology,2022,18(10):123-129.

[4]袁林, 刘浩伟,余志兵.双金属复合管液压成形[J].塑性工程学报,2022,29 (1): 26-34.

Yuan L,Liu H W,Yu Z B.Hydroforming of bimetallic composite pipes [J]. Journal of Plasticity Engineering,2022,29 (1): 26-34.

[5]杨专钊. 油气集输用双金属复合管[M].北京:石油工业出版社,2018.

Yang Z Z. Bimetallic Composite Pipe for Oil and Gas Gathering and Transportation[M]. Beijing: Petroleum Industry Press,2018.

[6]李发根, 杨家茂,冯泉,等.在役双金属复合管道失效机制及控制措施分析[J].焊管,2019,42(9):64-68.

Li F G,Yang J M,Feng Q,et al. Failure mechanism and control measures analysis of bimetal composite pipelines[J].Welded Pipe and Tube,2019,42(9):64-68.

[7]Jardin A,Liu S L,Pavone D,et al. Study on corrosion resistant alloy lined pipe delamination[A].Proceeding of the 28th International Ocean and Polar Engineering Conference[C]. Sapporo：2018.

[8]Yuan L,Kyriakides S. Liner wrinkling and collapse of bi-material pipe under bending [J]. International Journal of Solids and Structures,2014,51(3-4): 599-611.

[9]Yuan L,Kyriakides S. Liner wrinkling and collapse of girth-welded bi-material pipe under bending [J]. Applied Ocean Research,2015,50: 209-216.

[10]Gu T P,Zhang Q,Lian Z H,et al. Research and application of equiva-lent pipe model in stress analysis of lined pipe systems[J]. International Jour-nal of Pressure Vessels and Piping,2021,192:104418.

[11]Vasilikis D,Karamanos S A. Mechanics of confined thin-walled cylinders subjected to external pressure[J]. Applied Mechanics Reviews,2014,66(1): 010801.

[12]魏帆, 姜义,吴泽,等.双金属复合管鼓包机理分析和试验研究[J].天然气与石油,2017,35(5):6-11.

Wei F,Jiang Y,Wu Z,et al. Mechanism analysis and testing research on the buckling of the bimetal lined pipe[J].Natural Gas and Oil,2017,35(5):6-11.

[13]李循迹, 王福善,李发根,等.机械复合管衬层塌陷失效分析及对策研究[J].金属热处理,2019,44(S1):545-548.

Li X J,Wang F S,Li F G,et al.Liner collapse failure analysis and control measures research on bimetallic lined pipes[J].Heat Treatment of Metals,2019,44(S1):545-548.

[14]练章华, 成旭堂,谷天平.衬里复合管鼓包塌陷及修形力学分析[J].石油机械,2021,49(10):116-122.

Lian Z H,Cheng X T,Gu T P. Mechanical analysis of bulging,collapse and modification of lining composite pipe [J]. China Petroleum Machinery,2021,49(10):116-122.

[15]朱金婷, 张睿,卢安专,等. 薄壁管材内增量成形仿真与实验研究[J].塑性工程学报,2021,28(2):79-85.

Zhu J T，Zhang R，Lu A Z，et al. Simulation and experimental research on inner incremental forming of thin-walled tube [J].Journal of Plasticity Engineering,2021,28(2):79-85.

[16]史君林, 练章华,谷天平,等. 双金属复合管液压成形力学模型与数值模拟研究[J]. 塑性工程学报,2022,29 (5):161-169.

Shi J L,Lian Z H,Gu T P,et al. Mechanical model and numerical simulation study on hydroforming of bimetal composite pipe [J]. Journal of Plasticity Engineering,2022,29 (5):161-169.

[17]田野, 朱丽霞,罗金恒,等.X80管道划伤复合凹陷区的应力应变特征研究[J]. 塑性工程学报,2021,28(3):177-182.

Tian Y,Zhu L X,Luo J H,et al.Study on stress and strain characteristics of composite scratch dent zone of X80 pipeline[J]. Journal of Plasticity Engineering,2021,28(3):177-182.

[18]张建兵, 孔德涛,蒋成银,等. 工具锥角对膨胀套管环向残余应力的影响[J]. 塑性工程学报,2022,29 (1): 155-161.

Zhang J B,Kong D T,Jiang C Y,et al. Effect of tool cone angle on circumferential residual stress of expansion cas-ing [J]. Journal of Plasticity Engineering,2022,29 (1): 155-161.

[19]El-Sawy K M,Sweedan A M I. Effect of local wavy imperfections on the elastic stability of cylindrical liners subjected to external uniform pressure[J]. Tunnelling and Underground Space Technology,2010,25(6): 702-713.

[20]谷天平, 练章华, 王斌, 等. 双金属衬里复合管内衬弹塑性失稳有限元分析[J]. 塑性工程学报, 2023, 30 (2): 177-184.

Gu T P, Lian Z H, Wang B, et al. Finite element analysis of elastic-plastic instability of liner for bimetallic lined composite pipe[J]. Journal of Plasticity Engineering, 2023, 30 (2): 177-184.

[21]余建星, 王华昆，余杨，等.深海管道试验的数值模拟理论及应用[M].天津：天津大学出版社,2019.

Yu J X，Wang H K，Yu Y，et al. Numerical Simulation Theory and Application of Deep Sea Pipeline Test[M].Tianjin：Tianjin University Press，2019.

[22]余建星, 卞雪航,李智博,等.国外海底管道屈曲传播及止屈试验技术综述[J].船舶工程,2012,34(4):1-3,13.

Yu J X,Bian X H,Li Z B,et al.Overview of buckling propagation and buckle arrestor experiment of underwater pipelines abroad[J].Ship Engineering,2012,34(4):1-3,13

[23]GB/T 241—2007，金属管液压试验方法[S].

GB/T 241—2007，Metal materials—Tube—Hydrostatic pressure test[S].

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