Y型和K型复合材料桁架接头承载性能分析
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摘要
复合材料连接接头是复合材料航空结构中的主要部件,接头部位的受力和变形状况是十分复杂的,据统计,飞行器结构有70%以上的破坏都发生在连接部位。因此围绕复合材料接头的研制而开展的设计及分析等方面的研究具有重要的理论和实际意义,已成为当今航空航天新材料的一个研究重点和发展方向。
本文研究的内容可分为两个部分。首先研究了辅管直径、辅管厚度、主管厚度、辅主管夹角、两辅管间距离对Y型、K型圆圆相贯复合材料桁架接头及Y型、K型方圆相贯复合材料桁架接头承载性能的影响,其次分析了一种特殊的Y型圆圆相贯桁架接头(T型)在分别承受压缩、弯曲、扭转和压缩-弯曲-扭转组合载荷工况时辅管直径、辅管厚度及主管厚度对其承载性能的影响。
利用有限元ANSYS分析软件建立不同几何参数条件下的Y型、K型圆圆相贯复合材料桁架接头和Y型、K型方圆相贯复合材料桁架接头的有限元模型,计算了各组有限元模型在相同边界条件下的应力分布情况,得到了各组复合材料桁架接头承载性能与辅管直径、辅管厚度、主管厚度、辅主管夹角和两辅管间距离之间的关系曲线。结果表明本文所研究的四种形式的桁架接头最大应力都会出现在接头主管与辅管的相贯处,该区域为桁架接头最为薄弱的区域,极容易被破坏。
本文还针对T型圆圆相贯桁架接头在承受不同载荷工况时辅管直径、辅管厚度及主管厚度对其承载性能的影响做了相应的有限元分析,结果表明,桁架接头主管与辅管相贯处仍旧是容易被破坏的区域,在设计与加工时应给予相应的局部补强。
Composite material joint is the main components of the aviation structure, the condition of stress and deformation in the joint part is very complicated. According to statistics, more than 70% damage of the aircraft structure is occurred in the joint part.Therefore, the research including design, analysis which is carried around the develpoment of composite material joint has important theoretical and practical significance, so it has become a mian research filed and development direction of new materials in aerospace field.
The studies in this article can be divided into two parts. In the first part of this article, based on a series of numerical analysis of composite tubular Y-joint and K-joint of various geometric parameters, the effect of the various geometric parameters on stress distribution had been investigated. The various geometric parameters were consisted of auxiliary tube diameter, auxiliary tube thickness, competent thickness, angle between auxiliary tube and competent, distance between two auxiliary tubes. In the second part ,the effect of auxiliary tube diameter, auxiliary tube thickness, competent thickness on stress distribution of a special kind of Y-joint composite tubular (T-joint) under compression, bending, torsion and compression - bending - torsion load case combinations had been discussed.
Finite element models for composite tubular Y-joint and K-joint of various geometric parameters were established with ANSYS software. The relationship curves between stress distribution of each group composite truss joints and various geometric parameters were obtained with finite element analysis of each group of tested samples.The results show that, the maximum stress of the four kinds truss joints appeared on the junction place of competent and auxiliary tube.This area is the most unsubstantial of the truss joint, it can be destroyed easily.
Finite element models for composite tubular T-joint under different load conditions were developed. The relationship curves between stress distribution of composite tubular T-joint and various geometric parameters were also studied. According to the results, the junction place of competent and auxiliary tube is still the most unsafe area. The corresponding local enhancement should be provided during design and processing.
本文研究的内容可分为两个部分。首先研究了辅管直径、辅管厚度、主管厚度、辅主管夹角、两辅管间距离对Y型、K型圆圆相贯复合材料桁架接头及Y型、K型方圆相贯复合材料桁架接头承载性能的影响,其次分析了一种特殊的Y型圆圆相贯桁架接头(T型)在分别承受压缩、弯曲、扭转和压缩-弯曲-扭转组合载荷工况时辅管直径、辅管厚度及主管厚度对其承载性能的影响。
利用有限元ANSYS分析软件建立不同几何参数条件下的Y型、K型圆圆相贯复合材料桁架接头和Y型、K型方圆相贯复合材料桁架接头的有限元模型,计算了各组有限元模型在相同边界条件下的应力分布情况,得到了各组复合材料桁架接头承载性能与辅管直径、辅管厚度、主管厚度、辅主管夹角和两辅管间距离之间的关系曲线。结果表明本文所研究的四种形式的桁架接头最大应力都会出现在接头主管与辅管的相贯处,该区域为桁架接头最为薄弱的区域,极容易被破坏。
本文还针对T型圆圆相贯桁架接头在承受不同载荷工况时辅管直径、辅管厚度及主管厚度对其承载性能的影响做了相应的有限元分析,结果表明,桁架接头主管与辅管相贯处仍旧是容易被破坏的区域,在设计与加工时应给予相应的局部补强。
Composite material joint is the main components of the aviation structure, the condition of stress and deformation in the joint part is very complicated. According to statistics, more than 70% damage of the aircraft structure is occurred in the joint part.Therefore, the research including design, analysis which is carried around the develpoment of composite material joint has important theoretical and practical significance, so it has become a mian research filed and development direction of new materials in aerospace field.
The studies in this article can be divided into two parts. In the first part of this article, based on a series of numerical analysis of composite tubular Y-joint and K-joint of various geometric parameters, the effect of the various geometric parameters on stress distribution had been investigated. The various geometric parameters were consisted of auxiliary tube diameter, auxiliary tube thickness, competent thickness, angle between auxiliary tube and competent, distance between two auxiliary tubes. In the second part ,the effect of auxiliary tube diameter, auxiliary tube thickness, competent thickness on stress distribution of a special kind of Y-joint composite tubular (T-joint) under compression, bending, torsion and compression - bending - torsion load case combinations had been discussed.
Finite element models for composite tubular Y-joint and K-joint of various geometric parameters were established with ANSYS software. The relationship curves between stress distribution of each group composite truss joints and various geometric parameters were obtained with finite element analysis of each group of tested samples.The results show that, the maximum stress of the four kinds truss joints appeared on the junction place of competent and auxiliary tube.This area is the most unsubstantial of the truss joint, it can be destroyed easily.
Finite element models for composite tubular T-joint under different load conditions were developed. The relationship curves between stress distribution of composite tubular T-joint and various geometric parameters were also studied. According to the results, the junction place of competent and auxiliary tube is still the most unsafe area. The corresponding local enhancement should be provided during design and processing.
引文
[1]谢鸣九.复合材料连接手册[M].北京:航空工业出版社,1994.
[2]李顺林,王兴业.复合材料结构设计基础[M].武汉:武汉理工大学出版社,1993.
[3]鞠苏.大跨度复合材料支架及其快速架撤机构设计[D].国防科技大学,2006.
[4]李利良,郭伟民,何家芳.国内外近空间飞艇的现状和发展[J].武器装备自动化,2008,2(27):32.
[5]杨红娜,黄航,沃西源,王声窍.桁架结构卫星接头的研究进展[J].航天返回与遥感,2003,2(24):58-60.
[6]鞠苏,曾竟成,汪大志,肖加余,杜刚.复合材料桁架接头研究进展[J].材料导报,2006,20(12):28-31.
[7]郑百林,张士元,贺鹏飞,居建国,孙玉蓉.卫星桁架复合材料多连通接头性能的测试与分析[J] .复合材料学报,2005,22(6):172-177.
[8]王丹勇,温卫东,崔海涛.纤维增强复合材料机械连接接头疲劳研究进展[J].材料科学与工程学报,2005,23(4):614-619.
[9]程家林.层压式复合材料连接接头设计及其在大飞机中的应用研究[C]//中国航空学会2007年学术年会.2007.
[10] Cheng Xu,Xiong Junjiang,Peng Bo,Cheng Zeling,Li Hongyun.Mechanical Properties of RTM-made Composite Cross-joints[J].Chinese Journal of Aeronautics,2009,22:211-217.
[11] R.Schvtze.Lightweight carbonfibre rods and truss structures [J]. Materials&Design,1997,18(46):231-238.
[12] Thomas Kuhn,Ulrich Berger,Michael Lang and Horst Baier.Advanced Tailplane Designs and Repair Mechanisms for the Semirgid Airship Zeppelin NT[C]//5th AIAA,Aviation,Technology,Intergration,and Operations Conference ( ATIO )
26-28 September 2005,Arlington,Virginia.
[13]史坚忠,黄维杨.复合材料承力接头设计的相关理论与应用概述[J].洪都科技,1999,11-7.
[14]王杰,余音,汪海.泡沫夹层T型接头失效分析与局部几何参数设计[J].南京航空航天大学学报,2010,42(3):374-378.
[15]白江波,熊峻江,程序,彭勃.RTM成型复合材料T型接头工艺参数优化与力学性能实验研究[J].复合材料学报,2009,26(3):13-17.
[16] Efstathios E Theotokoglou.Study of the numerical fracture mechanics analysis of compositeT-Joints [J].Journal of Reinforced Plastics and Composites, 1999, 18(3):215-223.
[17] KumaiS,nhaPK. Finite element analysis of composite wing T-joints [J].Journal of Reinforced Plastics and Composites, 2002, 21(17):1561-1585.
[18] Shenoi R A, Violette F L M.A study of structural composite T-joints in small boats [J].Journal of Composite Materials, 1990, 24:644-666.
[19] Kesavan, M.Deivasigamani, S.John, I.Herszberg.Damage detection in T-joint composite structures [J].Composite Structures, 2006, 75:313-320.
[20] Jerry Alan Peck, Guoqiang Li, Su-Seng Pang, Michael A.Stubblefield.Light intensity effect on UV cured FRP coupled composite pipe joints [J]. Composite Structures, 2004, 64:539-546.
[21]钱均,肖军,李勇.桁架式卫星接头自动铺丝的建模研究[J].纤维复合材料,2002,2:3-5.
[22]汪裕炳,张全纯.复合材料的结构连接[M].北京:国防工业出版社,1992.
[23]杨彩云,杨红娜.3D机织复合材料卫星桁架接头的抗弯刚度研究[J].材料科学与工艺,2008,16(6):810-813.
[24]孙颖,陈利,李嘉禄.炭/环氧三维多向编织复合材料圆管相贯接头承载有限元分析[J] .固体火箭技术,2008,31(3):266-274.
[25] Shokrich M M, Lessard L B.Progressive fatigue damage modeling of composite materials, partⅠ: modeling [J].Journal of Composite Mater, 2000, 34:1056-1080.
[26] Shokrich M M, Lessard L B.Progressive fatigue damage modeling of compositematerials, partⅡ: material characterization and model verification [J].Journal of Composite Materials, 2000, 34:1081-1116.
[27] Shokrich M M, Lessard L B.Multiaxial fatigue behaviour of unidirectional plies based on uniaxial fatigue experimentsⅠ: modeling [J].International Journal of Fatigue, 1997, 19:201-207.
[28] Shokrich M M, Lessard L B.Multiaxial fatigue behaviour of unidirectional plies based on uniaxial fatigue experimentsⅡ:experimental evaluation[J] .International Journal of Fatigue, 1997, 19:209-217.
[29] Hashin Z.Fatigue failure criteria for combined cyclic stress [J]. International Journal of Fracture, 1981, 17:101-109.
[30]夏英伟,沃西源.先进复合材料桁架接头的研制与试验[J] .航天返回与遥感,2004,25(3):49-54.
[31]王增山,虞伟建,王开富.基于ANSYA的机翼接头强度分析及优化设计[J].机械设计与制造,2009,7:47-49.
[32] Taijun Wang, Thomas T.C.Hsu.Nonlinear finite element analysis of concrete using new constitutive models [J]. Computer and Structures, 2001, 79:2781-1791.
[33] Je Hoon Oh.Strength prediction of tubular composite adhesive joints under torsion [J].Composites Science and Technology, 2007, 67:1340-1347.
[34] Kesavan, M.Deivasigamani, S.John, I.Herszberg.Damage detection in T-joint composite structures [J].Composite Structures, 2006, 75:313-320.
[35] Jerry Alan Peck, Guoqiang Li, Su-Seng Pang, Michael A. Stubblefield. Light intensity effect on UV cured FRP coupled composite pipe joints [J].Composite Structures, 2004, 64:539-546.
[36]史坚忠,黄维杨.复合材料缠绕接头几种受力状态的解析分析[J] .南京航空航天大学学报,1999,31(6):722-726.
[37] E.Baranger, O.Allix, L.Blanchard. A computational strategy for the analysis of damage in composite pipes [J].Composites Science and Technology, 2009,69:88-92.
[38] Chihdar Yang, Zhidong Guan. Stress Analysis of Composite Pipe Joints Under Combined Torsional and Tensile Loading [J].Journal of Pressure Vessel Technology, 2009, 131: 051210-1-051210-6.
[39] Zhenyun Ouyang, Guoqiang Li. Cohesive zone model based analytical solutions for adhesively bonded pipe joints under torsional loading [J].Internation Journal of Solids and Sturctures, 2009, 46:1205-1217.
[40] R.Courant. Variational Method for Solutions of Problems of Equilibrium and Vibrations [J]. Bull.Am.Math.Soc.1943, 49:1-23.
[41] M.J.Turmer, R.W.Clough, H.C.Martin, L.C.Topp.Stiffness and Deflection Analysis of Complex Structures [J].J.Aero.Sci.1956, 23:805-823.
[42]孙江,纤维缠绕复合材料管件的非线性行为分析及计算[J].玻璃钢/复合材料.2004,(4):3-6.
[43]倪爱清,朱以文,王继辉.缠绕角对复合材料内压管强度的影响[J].武汉理工大学学报.2006,28(3):10-13.
[44] R.W. Clough.The Finite Element Method in Plane Stress Analysis [J].Proc.2nd ASCE Conference on Electronic Compution. Pittsburgh, PA.345-378, Sept.1960.
[45]崔昭霞,绍华,巩勇智.纤维缠绕复合材料壳体的应力和变形分析[J].机械设计.2005,22(10):14-16.
[2]李顺林,王兴业.复合材料结构设计基础[M].武汉:武汉理工大学出版社,1993.
[3]鞠苏.大跨度复合材料支架及其快速架撤机构设计[D].国防科技大学,2006.
[4]李利良,郭伟民,何家芳.国内外近空间飞艇的现状和发展[J].武器装备自动化,2008,2(27):32.
[5]杨红娜,黄航,沃西源,王声窍.桁架结构卫星接头的研究进展[J].航天返回与遥感,2003,2(24):58-60.
[6]鞠苏,曾竟成,汪大志,肖加余,杜刚.复合材料桁架接头研究进展[J].材料导报,2006,20(12):28-31.
[7]郑百林,张士元,贺鹏飞,居建国,孙玉蓉.卫星桁架复合材料多连通接头性能的测试与分析[J] .复合材料学报,2005,22(6):172-177.
[8]王丹勇,温卫东,崔海涛.纤维增强复合材料机械连接接头疲劳研究进展[J].材料科学与工程学报,2005,23(4):614-619.
[9]程家林.层压式复合材料连接接头设计及其在大飞机中的应用研究[C]//中国航空学会2007年学术年会.2007.
[10] Cheng Xu,Xiong Junjiang,Peng Bo,Cheng Zeling,Li Hongyun.Mechanical Properties of RTM-made Composite Cross-joints[J].Chinese Journal of Aeronautics,2009,22:211-217.
[11] R.Schvtze.Lightweight carbonfibre rods and truss structures [J]. Materials&Design,1997,18(46):231-238.
[12] Thomas Kuhn,Ulrich Berger,Michael Lang and Horst Baier.Advanced Tailplane Designs and Repair Mechanisms for the Semirgid Airship Zeppelin NT[C]//5th AIAA,Aviation,Technology,Intergration,and Operations Conference ( ATIO )
26-28 September 2005,Arlington,Virginia.
[13]史坚忠,黄维杨.复合材料承力接头设计的相关理论与应用概述[J].洪都科技,1999,11-7.
[14]王杰,余音,汪海.泡沫夹层T型接头失效分析与局部几何参数设计[J].南京航空航天大学学报,2010,42(3):374-378.
[15]白江波,熊峻江,程序,彭勃.RTM成型复合材料T型接头工艺参数优化与力学性能实验研究[J].复合材料学报,2009,26(3):13-17.
[16] Efstathios E Theotokoglou.Study of the numerical fracture mechanics analysis of compositeT-Joints [J].Journal of Reinforced Plastics and Composites, 1999, 18(3):215-223.
[17] KumaiS,nhaPK. Finite element analysis of composite wing T-joints [J].Journal of Reinforced Plastics and Composites, 2002, 21(17):1561-1585.
[18] Shenoi R A, Violette F L M.A study of structural composite T-joints in small boats [J].Journal of Composite Materials, 1990, 24:644-666.
[19] Kesavan, M.Deivasigamani, S.John, I.Herszberg.Damage detection in T-joint composite structures [J].Composite Structures, 2006, 75:313-320.
[20] Jerry Alan Peck, Guoqiang Li, Su-Seng Pang, Michael A.Stubblefield.Light intensity effect on UV cured FRP coupled composite pipe joints [J]. Composite Structures, 2004, 64:539-546.
[21]钱均,肖军,李勇.桁架式卫星接头自动铺丝的建模研究[J].纤维复合材料,2002,2:3-5.
[22]汪裕炳,张全纯.复合材料的结构连接[M].北京:国防工业出版社,1992.
[23]杨彩云,杨红娜.3D机织复合材料卫星桁架接头的抗弯刚度研究[J].材料科学与工艺,2008,16(6):810-813.
[24]孙颖,陈利,李嘉禄.炭/环氧三维多向编织复合材料圆管相贯接头承载有限元分析[J] .固体火箭技术,2008,31(3):266-274.
[25] Shokrich M M, Lessard L B.Progressive fatigue damage modeling of composite materials, partⅠ: modeling [J].Journal of Composite Mater, 2000, 34:1056-1080.
[26] Shokrich M M, Lessard L B.Progressive fatigue damage modeling of compositematerials, partⅡ: material characterization and model verification [J].Journal of Composite Materials, 2000, 34:1081-1116.
[27] Shokrich M M, Lessard L B.Multiaxial fatigue behaviour of unidirectional plies based on uniaxial fatigue experimentsⅠ: modeling [J].International Journal of Fatigue, 1997, 19:201-207.
[28] Shokrich M M, Lessard L B.Multiaxial fatigue behaviour of unidirectional plies based on uniaxial fatigue experimentsⅡ:experimental evaluation[J] .International Journal of Fatigue, 1997, 19:209-217.
[29] Hashin Z.Fatigue failure criteria for combined cyclic stress [J]. International Journal of Fracture, 1981, 17:101-109.
[30]夏英伟,沃西源.先进复合材料桁架接头的研制与试验[J] .航天返回与遥感,2004,25(3):49-54.
[31]王增山,虞伟建,王开富.基于ANSYA的机翼接头强度分析及优化设计[J].机械设计与制造,2009,7:47-49.
[32] Taijun Wang, Thomas T.C.Hsu.Nonlinear finite element analysis of concrete using new constitutive models [J]. Computer and Structures, 2001, 79:2781-1791.
[33] Je Hoon Oh.Strength prediction of tubular composite adhesive joints under torsion [J].Composites Science and Technology, 2007, 67:1340-1347.
[34] Kesavan, M.Deivasigamani, S.John, I.Herszberg.Damage detection in T-joint composite structures [J].Composite Structures, 2006, 75:313-320.
[35] Jerry Alan Peck, Guoqiang Li, Su-Seng Pang, Michael A. Stubblefield. Light intensity effect on UV cured FRP coupled composite pipe joints [J].Composite Structures, 2004, 64:539-546.
[36]史坚忠,黄维杨.复合材料缠绕接头几种受力状态的解析分析[J] .南京航空航天大学学报,1999,31(6):722-726.
[37] E.Baranger, O.Allix, L.Blanchard. A computational strategy for the analysis of damage in composite pipes [J].Composites Science and Technology, 2009,69:88-92.
[38] Chihdar Yang, Zhidong Guan. Stress Analysis of Composite Pipe Joints Under Combined Torsional and Tensile Loading [J].Journal of Pressure Vessel Technology, 2009, 131: 051210-1-051210-6.
[39] Zhenyun Ouyang, Guoqiang Li. Cohesive zone model based analytical solutions for adhesively bonded pipe joints under torsional loading [J].Internation Journal of Solids and Sturctures, 2009, 46:1205-1217.
[40] R.Courant. Variational Method for Solutions of Problems of Equilibrium and Vibrations [J]. Bull.Am.Math.Soc.1943, 49:1-23.
[41] M.J.Turmer, R.W.Clough, H.C.Martin, L.C.Topp.Stiffness and Deflection Analysis of Complex Structures [J].J.Aero.Sci.1956, 23:805-823.
[42]孙江,纤维缠绕复合材料管件的非线性行为分析及计算[J].玻璃钢/复合材料.2004,(4):3-6.
[43]倪爱清,朱以文,王继辉.缠绕角对复合材料内压管强度的影响[J].武汉理工大学学报.2006,28(3):10-13.
[44] R.W. Clough.The Finite Element Method in Plane Stress Analysis [J].Proc.2nd ASCE Conference on Electronic Compution. Pittsburgh, PA.345-378, Sept.1960.
[45]崔昭霞,绍华,巩勇智.纤维缠绕复合材料壳体的应力和变形分析[J].机械设计.2005,22(10):14-16.
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