全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

K-cor夹层结构的平压性能

, PP. 1284-1291

Keywords: K-cor结构,X-cor结构,平压性能,端部约束,折弯长度

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用欧拉杆屈曲模型,以端部约束系数μ定量表征夹层结构Z-pin端部结合程度,μ取值越小,Z-pin端部和面板结合程度越高,压缩载荷下更不易失稳。以不同参数K/X-cor结构的压缩试验为背景,分别研究了Z-pin直径和折弯长度对压缩试验性能的影响。通过显微观察并利用"混合法则"比较了Z-pin直径对K/X-cor结构的增强效率。从减重方面考虑,探讨了折弯长度对K-cor结构比强度和比刚度的影响,并得到最优折弯长度半解析表达式。结果表明:K-cor结构中Z-pin增强效率高且对结构损伤小,远优于X-cor结构;其比强度和比刚度随折弯长度的增加呈先增加后降低的趋势,不同参数的K-cor结构折弯长度存在最佳值。

References

[1]  黄 涛, 矫桂琼, 徐婷婷.Z向增强泡沫夹层结构复合材料[J].纤维复合材料, 2005, 22(3): 19-23.Huang Tao, Jiao Guiqiong, Xu Tingting.Research development and application of Z-reinforcement foam core sandwich [J].Fiber Composites, 2005, 22(3): 19-23.
[2]  Partridge I K, Cartié D D R, Bonnington T.Manufacture and performance of Z-pinned composites [C]//Shonaike G O, Advani S G.Advanced Polymeric Materials: Structure Property Relationships.Boca Raton: CRC Press, 2003: 98-137.
[3]  Cartié D D R, Fleck N A.The effect of pin reinforcement upon the through-thickness compressive strength of foam-cored sandwich panels [J].Composites Science and Technology, 2003, 63(16): 2401-2409.
[4]  杜 龙, 矫桂琼, 黄 涛.Z-pin增强泡沫夹层结构面压缩性能研究 [J].航空材料学报, 2008, 28(4): 101-106.Du Long, Jiao Guiqiong, Huang Tao.Through-thickness compression properties of Z-pin reinforced foam core sandwich [J].Journal of Aeronautical Materials, 2008, 28(4): 101-106.
[5]  党旭丹.X-cor夹层结构制备与力学性能研究 [D].南京: 南京航空航天大学, 2009.Dang Xudan.Preparation and mechanical properties of X-cor sandwich composites [D].Nanjing: Nanjing University of Aeronautics & Astronautics, 2009.
[6]  单杭英, 肖 军, 李 宁, 等.X-cor夹层结构的平压性能[J].南京航空航天大学学报, 2012, 44(2): 251-256.Shan Hangying, Xiao Jun, Li Ning, et al.Compressive properties of X-cor sandwich [J].Journal of Nanjing University of Aeronautics & Astronautics, 2012, 44(2): 251-256.
[7]  Casari P, Cartié D, Davies P.Characterization of novel K-cor [C]//Sandwich Structures 7: Advancing with Sandwich Structures and Materials.Aalborg: Springer, 2005: 865-874.
[8]  Davies P, Bigourdan B, Choqueuse D, et al.Pinned foam core sandwich for improved damage tolerance of racing yachts [C]//International Conference on Composite Materials.Edinburgh: ISSTB, 2009.
[9]  Nanayakkara A, Feih S, Mouritz A P.Experimental analysis of the through-thickness compression properties of Z-Pinned sandwich composites [J].Composites Part A: Applied Science and Manufacturing, 2011, 42(11): 1673-1680.
[10]  Virakthi A, Lee S, Haldar S, et al.Modeling of pin-facesheet interactions in K-cor sandwich structures under compressive loading [C]//54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.Reston: American Institute of Aeronautics and Astronautics, 2013: 1548-1562.
[11]  段沐枫, 李 宁, 郑莹莹, 等.K-cor夹层结构制备工艺[J].宇航材料工艺, 2012, 42(5): 21-25.Duan Mufeng, Li Ning, Zheng Yingying, et al.Manufacturing processes of K-cor sandwich structure [J].Aerospace Materials & Technology, 2012, 42(5): 21-25.
[12]  郑莹莹, 李 宁, 尚 伟, 等.K-cor增强泡沫夹层结构制备与力学性能 [J].复合材料学报, 2012, 29(6): 230-236.Zheng Yingying, Li Ning, Shang Wei, et al.Fabrication and mechanical performance of K-cor reinforced foam sandwich structure [J].Acta Materiae Compositae Sinica, 2012, 29(6): 230-236.
[13]  中国国家标准化管理委员会.GB/T 1453—87非金属夹层结构或芯子平压性能试验方法[S].北京: 中国标准出版社, 1998.Chinese Standard Association.GB/T 1453—87 Test method for flatwise compression properties of nonmetal sandwich constructions or cores [S].Beijing: Standards Press of China, 1998.
[14]  郑莹莹.K-cor增强泡沫夹层结构制备与力学性能研究[D].南京: 南京航空航天大学, 2013.Zheng Yingying.Research on preparation process and mechanical properties of K-cor sandwich structure [D].Nanjing: Nanjing University of Aeronautics & Astronautics, 2013.
[15]  Marasco A I, Cartié D D R, Partridge I K, et al.Mechanical properties balance in novel Z-pinned sandwich panels: Out-of-plane properties [J].Composites Part A: Applied Science and Manufacturing, 2006, 37(2): 295-302.
[16]  霍海涛, 莫 松, 孙宏杰, 等.蜂窝夹层结构粘接用聚酰亚胺胶膜的研究 [J].宇航材料工艺, 2011, 41(1): 51-53.Huo Haitao, Mo Song, Sun Hongjie, et al.Polyimide film adhesive for honeycomb sandwich structure bonding [J].Aerospace Materials & Technology, 2011, 41(1): 51-53.
[17]  Marasco A I.Analysis and evaluation of mechanical performance of reinforced sandwich structures: X-corTM and K-corTM [D].London: Cranfield University, 2005.
[18]  郝继军, 张佐光, 李 敏, 等.X-cor夹层复合材料平压性能分析 [J].航空学报, 2008, 29(4): 1079-1083.Hao Jijun, Zhang Zuoguang, Li Min, et al.Compression property analysis of X-cor sandwich composites [J].Acta Aeronautica et Astronautica Sinica, 2008, 29(4): 1079-1083.
[19]  李 勇, 肖 军, 谭永刚, 等.X-cor夹层结构压缩性能研究 [J].航空学报, 2009, 30(3): 557-561.Li Yong, Xiao Jun, Tan Yonggang, et al.Study on compressive properties of X-cor sandwich structures [J].Acta Aeronautica et Astronautica Sinica, 2009, 30(3): 557-561.
[20]  Mouritz A P.Compression properties of Z-pinned sandwich composites [J].Materials Science, 2006, 41: 5771-5774.
[21]  Mouritz A P.Review of Z-pinned composite laminates [J].Composites Part A: Applied Science and Manufacturing, 2007, 38(12): 2383-2397.
[22]  Yue C Y, Looi H C.Factors which influence the reliability of the assessment of interfacial bonding in fibrous composites using the pull-out test [J].International Journal of Adhesion and Adhesives, 2001, 21(4): 309-323.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133