铺层顺序对预成型体搭接复合材料拉伸性能影响的仿真与验证
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摘要
使用有限元理论模拟分析了几种不同铺层顺序的预成型体搭接复合材料的拉伸性能,并且使用国产碳纤维与快速固化环氧树脂制备相应的单下陷搭接试样,测试其搭接接头的拉伸性能,对有限元计算结果进行了验证。结果表明,使用有限元计算与实验方法得到的结果基本相符。有限元模拟及实验验证发现不同铺层结构的预成型体搭接复合材料有两种不同的破坏损伤模式。搭接上层板的层间剥离强度与层板本身弯曲性能共同决定了搭接接头的破坏模式及拉伸性能,两者中强度较弱的先发生破坏,导致试样失效。在预成型体搭接接头中,0°铺层越靠近搭接面,对搭接性能的影响越明显,搭接强度越高。搭接界面处纤维层之间的相对角度不同,纤维铺层刚度不同,刚度差别越大,搭接强度就越低。
In this paper,the finite element method was used to simulate and analyze the tensile properties of several pre-molded lap composites with different lamination sequences respectively.The corresponding joggle-lap joint samples were prepared by using domestic carbon fiber and rapid curing epoxy resin.The tensile properties of the lap were tested,and the results of finite element calculation were verified.The calculated results obtained by finite element method are basically consistent with the experimental results.It's found that there are two different failure modes of the preform lap joints with different stacking sequence.The interlaminar peel strength and the flexual property of the plate both determine the failure mode and tensile performance.The weaker damages first,resulting in the failure of the sample.In the preform lap joint,the closer the 0°ply lay to the lap face,the more obvious the influence on lap bonding performance is,and the lap strength performs better.And different relative angle between the fiber layers leads to different stiffnesses distinction.The bigger the difference is,the weaker the joint performs.
In this paper,the finite element method was used to simulate and analyze the tensile properties of several pre-molded lap composites with different lamination sequences respectively.The corresponding joggle-lap joint samples were prepared by using domestic carbon fiber and rapid curing epoxy resin.The tensile properties of the lap were tested,and the results of finite element calculation were verified.The calculated results obtained by finite element method are basically consistent with the experimental results.It's found that there are two different failure modes of the preform lap joints with different stacking sequence.The interlaminar peel strength and the flexual property of the plate both determine the failure mode and tensile performance.The weaker damages first,resulting in the failure of the sample.In the preform lap joint,the closer the 0°ply lay to the lap face,the more obvious the influence on lap bonding performance is,and the lap strength performs better.And different relative angle between the fiber layers leads to different stiffnesses distinction.The bigger the difference is,the weaker the joint performs.
引文
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[21] BENDEMRA H,COMPSTON P,CROTHERS P J.Optimisation study of tapered scarf and stepped-lap joints in composite repair patches[J].Composite Structures,2015,130:1-8.
[22] BREITZMAN T D,IARVE E V,COOK B M,et al.Optimization of a composite scarf repair patch under tensile loading[J].Composites Part A:Applied Science&Manufacturing,2009,40(12):1921-1930.
[23] WANG C H,GUNNION A J.On the design methodology of scarf repairs to composite laminates[J].Composites Science&Technology,2008,68(1):35-46.
[24]郭霞,关志东,刘遂,等.层压板双面挖补修理的拉伸性能研究及参数分析[J].复合材料学报,2012,29(1):176-182.GUO Xia,GUAN Zhidong,LIU Sui,et al.Tensile behavior and parameters designing of double-sides flush repair of composite laminates[J].Acta Materiae Compositae Sinica,2012,29(1):176-182(in Chinese).
[25] HAZIMEH R,OTHMAN R,KHALIL K,et al.Influence of plies’orientations on the stress distribution in adhesively bonded laminate composite joints subjected to impact loadings[J].Composite Structures,2016,152:654-664.
[26] TAIB A A,BOUKHILI R,ACHIOU S,et al.Bonded joints with composite adherends Part I:Effect of specimen configuration,adhesive thickness,spew fillet and adherend stiffness on fracture[J].International Journal of Adhesion&Adhesives,2006,26(4):226-236.
[27] GIVLER R C,PIPES R B.Analysis of the ‘Joggle-Lap’joint for automotive applications[J].Astm Special Technical Publication,1981(749):61-74.
[28]中国国家标准化管理委员会.纤维增强塑料拉伸性能试验方法:GB/T 1447—2005[S].北京:中国标准出版社,2005.China National Standardization Management Committee.Fiber-reinforced plastics composites—Determination of tensile properties:GB/T 1447—2005[S].Beijing:Standards Press of China,2005(in Chinese).
[2]冯瑞华.碳纤维在汽车领域的应用[J].新材料产业,2014(8):15-18.FENG Ruihua.Carbon fiber in the field of automotive applications[J].New Materials Industry,2014(8):15-18(in Chinese).
[3]陈绍杰.浅谈复合材料的整体成型技术[J].高科技纤维与应用,2005,30(1):6-9.CHEN Shaojie.Discussion on the integral molding technology of composite materials[J].High Technology Fiber&Application,2005,30(1):6-9(in Chinese).
[4] BANEA M D,SILVA L F M D.Adhesively bonded joints in composite materials:An overview[J].Proceedings of the Institution of Mechanical Engineers:Part L—Journal of Materials Design&Applications,2009,223(1):1-18.
[5] KIM W T,LEE D G.Torque transmission capabilities of adhesively bonded tubular lap joints for composite drive shafts[J].Composites Structures,1995,30(2):229-240.
[6] HER S C.Stress analysis of adhesively-bonded lap joints[J].Composites Structures,1999,47(1-4):673-678.
[7] APALAK M K.Geometrically non-linear analysis of adhesively bonded corner joints[J].Journal of Adhesion Science&Technology,1999,13(11):1253-1285.
[8] PENADO F E.Analysis of singular regions in bonded joints[J].International Journal of Fracture,2000,105(1):1-25.
[9] QIAN Z Q,AKISANYA A R,IMBABI M S.Edge effects in the failure of elastic/viscoelastic joints subjected to surface tractions[J].International Journal of Fracture,2000,37(41):5973-5994.
[10] ADAMS R D,PAPPIATT N A.Stress analysis of adhesive bonded tubular lap joints[J].The Journal of Adhesion,1977,9(1):1-18.
[11]叶斐,杨世文.碳纤维增强聚合物基复合材料胶接单搭接接头的力学研究[J].汽车实用技术,2015(2):68-70.YE Fei,YANG Shiwen.Mechanical study on adhesive single lap joints of carbon fiber reinforced plastics[J].Automobile Applied Technology,2015(2):68-70(in Chinese).
[12] HART-SMITH L J.Adhesive-bonded double-lap joints[J].International Journal of Solids&Structures,1973,31(21):2919-2931.
[13] SILVA L F M D,NEVES P J C D,ADAMS R D,et al.Analytical models of adhesively bonded joints—Part I:Literature survey[J].International Journal of Adhesion&Adhesives,2009,29(3):319-330.
[14]EVˇCK M,SHAHVERDI M,HUTAˇR P,et al.Analytical modeling of mixed-mode bending behavior of asymmetric adhesively bonded pultruded GFRP joints[J].Engineering Fracture Mechanics,2015,147:228-242.
[15] MATTHEWS F L,TESTER T T.The influence of stacking sequence on the strength of bonded CFRP single lap joints[J].International Journal of Adhesion&Adhesives,1985,5(1):13-18.
[16] BAKER A A,CHESTER R J,HUGO G R,et al.Scarf repairs to highly strained graphite/epoxy structure[J].International Journal of Adhesion&Adhesives,1999,19(1):161-171.
[17] HARMAN A,WANG C H.Analytic and finite element stress predictions in two dimensional scarf joints[C]//11th Australian International Aerospace Congress. Melbourne,2005.
[18] GUNNION A J,HERSZBERG I.Parametric study of scarf joints in composite structures[J].Composites Structures,2006,75(1-4):364-376.
[19] HARMAN A B,WANG C H.Improved design methods for scarf repairs to highly strained composite aircraft structure[J].Composites Structures,2006,75(1):132-144.
[20] WANG C H,GUNNION A J.On the design methodology of scarf repairs to composite laminates[J].Composites Science&Technology,2008,68(1):35-46.
[21] BENDEMRA H,COMPSTON P,CROTHERS P J.Optimisation study of tapered scarf and stepped-lap joints in composite repair patches[J].Composite Structures,2015,130:1-8.
[22] BREITZMAN T D,IARVE E V,COOK B M,et al.Optimization of a composite scarf repair patch under tensile loading[J].Composites Part A:Applied Science&Manufacturing,2009,40(12):1921-1930.
[23] WANG C H,GUNNION A J.On the design methodology of scarf repairs to composite laminates[J].Composites Science&Technology,2008,68(1):35-46.
[24]郭霞,关志东,刘遂,等.层压板双面挖补修理的拉伸性能研究及参数分析[J].复合材料学报,2012,29(1):176-182.GUO Xia,GUAN Zhidong,LIU Sui,et al.Tensile behavior and parameters designing of double-sides flush repair of composite laminates[J].Acta Materiae Compositae Sinica,2012,29(1):176-182(in Chinese).
[25] HAZIMEH R,OTHMAN R,KHALIL K,et al.Influence of plies’orientations on the stress distribution in adhesively bonded laminate composite joints subjected to impact loadings[J].Composite Structures,2016,152:654-664.
[26] TAIB A A,BOUKHILI R,ACHIOU S,et al.Bonded joints with composite adherends Part I:Effect of specimen configuration,adhesive thickness,spew fillet and adherend stiffness on fracture[J].International Journal of Adhesion&Adhesives,2006,26(4):226-236.
[27] GIVLER R C,PIPES R B.Analysis of the ‘Joggle-Lap’joint for automotive applications[J].Astm Special Technical Publication,1981(749):61-74.
[28]中国国家标准化管理委员会.纤维增强塑料拉伸性能试验方法:GB/T 1447—2005[S].北京:中国标准出版社,2005.China National Standardization Management Committee.Fiber-reinforced plastics composites—Determination of tensile properties:GB/T 1447—2005[S].Beijing:Standards Press of China,2005(in Chinese).