非金属非粘结软管拉伸性能的数值模拟分析
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摘要
针对非金属非粘结软管在拉伸状态下的力学特性,采用ABAQUS对其进行有限元分析并充分考虑了对层与层之间的摩擦接触。研究表明,提高抗压层扁带的环向强度、抗拉层扁带的轴向拉伸强度及环向拉伸强度可以提高软管的抗拉性能;抗拉层螺旋缠绕角和抗拉层厚度对软管拉伸刚度的影响较大,而内外压、抗拉层扁带数量和摩擦系数对软管拉伸刚度的影响很小。
In order to study the mechanical property of un-bonded flexible fiber reinforced pipe( FFRP) under tension,a detailed finite-element analysis( FEA) of un-bonded FFRP was presented in ABAQUS considering the frictional contact between all layers. It was shown that the tensile property of the flexible pipe can be enhanced when the hoop strength of compression resistance armor layer,the tensile strength and hoop tensile strength of tension resistance armor layer are enhanced. The lay angle and the thickness of tension resistance armor layer have a great influence on the tension stiffness of the flexible pipe,while the influence of internal and external pressure,tendon number of tension resistance armor layer and friction coefficient is little.
In order to study the mechanical property of un-bonded flexible fiber reinforced pipe( FFRP) under tension,a detailed finite-element analysis( FEA) of un-bonded FFRP was presented in ABAQUS considering the frictional contact between all layers. It was shown that the tensile property of the flexible pipe can be enhanced when the hoop strength of compression resistance armor layer,the tensile strength and hoop tensile strength of tension resistance armor layer are enhanced. The lay angle and the thickness of tension resistance armor layer have a great influence on the tension stiffness of the flexible pipe,while the influence of internal and external pressure,tendon number of tension resistance armor layer and friction coefficient is little.
引文
[1]KEBADZE E.Theoretical modeling of unbonded flexible pipe cross-sections[D].London,UK.:South Bank University,2000.
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[9]BAHTUI A,BAHAI H,ALFNO G.Constitutive modeling of un-bonded flexible risers under tension[C].Venice,Italy:Eighth World Congress on Computational Mechanics,Jun.30-Jul.5,2008.
[10]YUE Qianjin,LU Qingzhen,YAN Jun,et al.Tension behavior prediction of flexible pipelines in shallow water[J].Ocean engineering,2013,58:201-207.
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[12]宫治鹏.海洋柔性管缆水下浮力模块的设计研究[D].大连:大连理工大学,2016.
[13]曹淑刚,黄维平,周阳,等.并列双立管涡激振动特性的数值和实验研究[J].船海工程,2015,44(2):130-135.
[14]安世居,杨强,白海洋,等.柔性软管弯曲限制器的设计[J].油气储运,2016,35(5):551-554.
[15]ANSI/API RECOMMENDED PRACTICE 17B,Recommended Practice for Flexible Pipe[S].2008.
[16]Abaqus Analysis User's Manual[Z].USA:Version 6.10,2010.
[17]Abaqus Keywords Reference Manual[Z].USA:Version 6.10,2010.
[2]RAMOS Jr R,PESCE C P,MARTINS C A.A comparative analysis between analytical and fe-based models for flexible pipes subjected to axisymmetric loads[C].Seattle,USA.:Proc.of 10th 2000 Int.Offshore and Polar Eng.Conference,ISOPE,May 28-June 2,2000.
[3]RAMOS J R,PESCE C P.A consistent analytical model to predict the structural behavior of flexible risers subjected to combined loads[J].Offshore mech.arct.eng.,2004,126:141-146.
[4]ELTON J B,JOSE R M,GILBERTO B,et al.On the tension-compression behaviors of flexible risers[C].Proceedings of ISOPE,2003.
[5]KRAINCANIC I,KEBADZE E.Slip initiation and progression in helical armoring layers of unbonded flexible pipes and its effect on pipe bending behavior[J].Journal of strain analysis for engineering design,2001,236:265-275.
[6]BAHTUI A,BAHAI H,ALFANO G.A finite element analysis for unbonded flexible risers under torsion[J].Offshore mech.arct.eng.,2008,130(4):1-4.
[7]BAHTUI A,BAHAI H,ALFANO G.Numerical and analytical simulation of unbonded flexible risers subjected to combined modes of loading[C].San Fran-cisco,USA:Ninth US National Congress on Computational Mechanics,2007.
[8]BAHTUI A,BAHAI H,ALFANO G.A finite element analysis for unbonded flexible risers under axial tension[C].Estoril,Portugal:Proceedings of the OMAE200827th International Conference on Offshore Mechanics and Arctic Engineering,Jun.15-20,2008.
[9]BAHTUI A,BAHAI H,ALFNO G.Constitutive modeling of un-bonded flexible risers under tension[C].Venice,Italy:Eighth World Congress on Computational Mechanics,Jun.30-Jul.5,2008.
[10]YUE Qianjin,LU Qingzhen,YAN Jun,et al.Tension behavior prediction of flexible pipelines in shallow water[J].Ocean engineering,2013,58:201-207.
[11]肖少洋.海洋柔性管道拉弯组合疲劳试验机设计研究[D].大连:大连理工大学,2016.
[12]宫治鹏.海洋柔性管缆水下浮力模块的设计研究[D].大连:大连理工大学,2016.
[13]曹淑刚,黄维平,周阳,等.并列双立管涡激振动特性的数值和实验研究[J].船海工程,2015,44(2):130-135.
[14]安世居,杨强,白海洋,等.柔性软管弯曲限制器的设计[J].油气储运,2016,35(5):551-554.
[15]ANSI/API RECOMMENDED PRACTICE 17B,Recommended Practice for Flexible Pipe[S].2008.
[16]Abaqus Analysis User's Manual[Z].USA:Version 6.10,2010.
[17]Abaqus Keywords Reference Manual[Z].USA:Version 6.10,2010.