轴压作用下双金属复合管组合作用与承载力分析
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摘要
为探究轴压作用下双金属复合海底管道的组合作用与承载性能,对双金属复合海底管道进行了试验研究和理论分析。开展了不锈钢衬管材料性能试验,对比了国际主流不锈钢本构关系模型和试验结果。利用ABAQUS建立了精细化的双金属复合管道轴压试验有限元模型,系统研究了关键参数如复合工艺产生的环向复合应力、钢管初始缺陷幅值等对双金属复合管在轴压作用下力学性能的影响规律。通过对比已有轴压双金属复合管道试验结果,验证有限元模型。基于验证的有限元模型,对轴压作用下双金属复合管道的组合作用以及径厚比和材料强度对承载力的影响进行了分析。结果表明双金属复合管道的轴压极限承载力主要取决于基管的截面屈服荷载,并随着管径和材料强度的提高而增大。并依据分析结果对双金属复合海底管道的设计提出建议。
In order to explore the composite action and bearing capacity of the offshore lined pipe under axial compression,the experimental study and theoretical analysis of the offshore lined pipe are carried out in this study. The coupon test of liner pipe of stainless steel was carried out,and the constitutive model of international mainstream stainless steel and test results were compared. A fine finite element model of the offshore lined pipe under axial compression was established by ABAQUS. The influence of key parameters such as the residual hoop stress produced by the composite process and the initial imperfection amplitudes on the mechanical properties of lined pipe under axial compression was studied systematically. The finite element model was verified by comparing the experimental results of the existing axial compression lined pipe. Based on the validated finite element model,the effects of the composite action,diameter-thickness ratio and material strength on the bearing capacity of lined pipe under axial compression were analyzed. The results show that the ultimate bearing capacity of the offshore lined pipe mainly depends on the yield load of the cross section of outer pipe and increases with the increase of diameter and material strength. Based on the analysis results,suggestions for the design of the offshore lined pipe are made.
In order to explore the composite action and bearing capacity of the offshore lined pipe under axial compression,the experimental study and theoretical analysis of the offshore lined pipe are carried out in this study. The coupon test of liner pipe of stainless steel was carried out,and the constitutive model of international mainstream stainless steel and test results were compared. A fine finite element model of the offshore lined pipe under axial compression was established by ABAQUS. The influence of key parameters such as the residual hoop stress produced by the composite process and the initial imperfection amplitudes on the mechanical properties of lined pipe under axial compression was studied systematically. The finite element model was verified by comparing the experimental results of the existing axial compression lined pipe. Based on the validated finite element model,the effects of the composite action,diameter-thickness ratio and material strength on the bearing capacity of lined pipe under axial compression were analyzed. The results show that the ultimate bearing capacity of the offshore lined pipe mainly depends on the yield load of the cross section of outer pipe and increases with the increase of diameter and material strength. Based on the analysis results,suggestions for the design of the offshore lined pipe are made.
引文
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[16] LIN Yuan,STELIOS Kyriakides. Liner wrinkling and collapse of bi-material pipe under bending[J]. International Journal of Solids and Structures,2014,51(3-4):599-611.
[17] DNV-OS-F101,Submarine pipeline systems[S]. Norway:Det Norske Veritas,2010.
[18]袁焕鑫,王元清,杜新喜,等.不锈钢焊接箱形截面短柱轴压局部稳定性能[J].东南大学学报(自然科学版),2015,45(4):769-775.(YUAN Huanxin,WANG Yuanqing,DU Xinxi,et al. Local buckling behavior of axially loaded stub columns with welded stainless steel box sections[J]. Journal of Southeast University,Natural Science Edition,2015,45(4):769-775.(in Chinese))
[2]朱世东,王栋,李广山,等.油气田用双金属复合管研究现状[J].腐蚀科学与防护技术,2011,23(6):529-534.(ZHU Shidong,WANG Dong,LI Guangshan,et al. Research status of bimetallic composite pipe for oil and gas field[J]. Corrosion Science and Protection Technology,2011,23(6):529-534.(in Chinese))
[3]杨璐,徐东辰,尚帆,等.双相型不锈钢焊接箱形截面轴压构件整体稳定性能试验研究[J].东南大学学报(自然科学版),2015,45(2):364-369.(YANG Lu,XU Dongchen,SHANG Fan,et al. Experimental study on overall buckling behavior of duplex stainless steel welded box columns under axial compression[J]. Journal of Southeast University,Natural Science Edition,2015,45(2):364-369.(in Chinese))
[4]杨璐,徐东辰,尚帆,等.双相型不锈钢焊接工字形截面轴压柱整体稳定性能试验研究[J].建筑结构学报,2015,36(7):99-105.(YANG Lu,XU Dongchen,SHANG Fan,et al. Experimental study on overall buckling behavior of duplex stainless steel welded I-shaped columns under axial compression[J]. Journal of Building Structures,2015,36(7):99-105.(in Chinese))
[5] WANG F C,HAN L H,LI W. Analytical behavior of CFDST stub columns with external stainless steel tubes under axial compression[J]. Thin-Walled Structures,2018,127:756-768.
[6]毕宗岳,王纯,晁利宁,等. L360QS/Incoloy825镍基合金液压复合管的有限元模拟与试验[J].塑性工程学报,2016,23(1):131-135.(BI Zongyue,WANG Chun,CHAO Lining,et al. Finite element simulation and experimental study of L360QS/Incoloy825 nickel base alloy hydraulic pipe[J]. Journal of Plasticity Engineering,2016,23(1):131-135.(in Chinese))
[7] WANG F. Effective design of submarine pipe-in-pipe using finite element analysis[J]. Ocean Engineering,2018,153:23-32.
[8]王立忠,王宽君,施若苇.管道热屈曲动力过程数值模拟[J].海洋工程,2015,33(5):73-80.(WANG Lizhong,WANG Kuanjun,SHI Ruowei. Numerical simulation for the dynamic process of pipeline buckling[J]. The Ocean Engineering,2015,33(5):73-80.(in Chinese))
[9]中华人民共和国国家能源局.中华人民共和国石油天然气行业标准[S].北京:石油工业出版社,2010.(National Energy Administration of The People's Republic of China. The people's republic of china petroleum natural gas profession standard[S].Beijing:Petroleum Industry Press,2010.(in Chinese))
[10] FOCKE E S,GRESNIGT A M,HILBERINK A. Local buckling of tight fit liner pipe[J]. Journal of Pressure Vessel Technologytransactions of The ASME,2011,133(1):011207-011207-10.
[11] LIN Yuan,STELIOS Kyriakides. Liner wrinkling and collapse of bi-material pipe under axial compression[J]. International Journal of Solids and Structures,2015,60-61:48-59.
[12]王元清,袁焕鑫,石永久,等.不锈钢结构的应用和研究现状[J].钢结构,2010,25(2):1-12.(WANG Yuanqing,YUAN Huanxin,SHI Yongjiu,et al. A review of current applications and research of stainless steel structure[J]. Steel Construction,2010,25(2):1-12.(in Chinese))
[13]刘晓斌,冷枝,姜金彪.液压胀型法双金属复合海管生产质量控制[J].中国造船,2014,55(S2):477-482.(LIU Xiaobin,LENG Zhi,JIANG Jinbiao. Quality control on subsea double metal composite pipeline with hydraulic expansion[J].Shipbuilding of China,2014,55(S2):477-482.(in Chinese))
[14] FOCKE E S. Reeling of tight fit pipe[D]. Delft:Technische Universiteit Delft,2007.
[15] GARDNER L,ASHRAF M. Structural design for non-linear metallic materials[J]. Engineering Structures,2006,28(6):926-934.
[16] LIN Yuan,STELIOS Kyriakides. Liner wrinkling and collapse of bi-material pipe under bending[J]. International Journal of Solids and Structures,2014,51(3-4):599-611.
[17] DNV-OS-F101,Submarine pipeline systems[S]. Norway:Det Norske Veritas,2010.
[18]袁焕鑫,王元清,杜新喜,等.不锈钢焊接箱形截面短柱轴压局部稳定性能[J].东南大学学报(自然科学版),2015,45(4):769-775.(YUAN Huanxin,WANG Yuanqing,DU Xinxi,et al. Local buckling behavior of axially loaded stub columns with welded stainless steel box sections[J]. Journal of Southeast University,Natural Science Edition,2015,45(4):769-775.(in Chinese))