Uni-axial tensile mechanical properties and elastic constants of airship envelope material

被引：0
|
作者：
He S. [1 ]
Chen W. [1 ]
Gao C. [1 ]
Li C. [1 ]
Jiang M. [2 ]
He W. [2 ]
机构：
[1] Space Structures Research Centre, Shanghai Jiao Tong University, Shanghai
[2] Special Aircraft Research Institute, Jingmen, 448000, Hubei
来源：
Chen, Wujun (cwj@sjtu.edu.cn) | 1600年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 34期
关键词：
Airship envelope material; Elasticity modulus; Poisson's ratio; Uniaxial tensile; VIC-2D;
D O I：
10.13801/j.cnki.fhclxb.20160328.011
中图分类号：
学科分类号：
摘要：
The experiment results of uniaxial tension of airship envelope material Uretek5876 were analyzed in seven in-plane directions including 0°, 15°, 30°, 45°, 60°, 75°, 90°, which provided the law of residual strain and elasticity modulus with cycle inder. The modulus obtained from the theory of single layer board does not adapt to multi-layer pressure membrane material. VIC-2D digital speckle technique was used in tensile process to obtain the displacement field and strain field. Based on displacement field, the Poisson's ratio of Uretek 5876 was obtained. Strain field was not only used to analysis tensile failure mechanism, but also can forecast the position and type of fracture. The uniaxial tensile strength was tested by two kinds of specification of the sample, and the sample 3 was found to be more proper to response the actual strength of Uretek 5876. The work in this paper provides reference value for the design and analysis of the airship structure. © 2017, Chinese Society for Composite Materials. All right reserved.
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页码：224 / 230
页数：6
相关论文
共 13 条
  • [1] Chen W.J., Design of Membrane Structure Engineering, pp. 123-135, (2005)
  • [2] Gao H.J., Chen W.J., Fu G.Y., Experiments on the mechanical properties of envelope fabrics of lta aerostat, Space Structure, 16, 1, pp. 57-64, (2010)
  • [3] Yi H.L., Ding X., Chen S.H., Orthotropic behavior and strength criterion of PES/PVC membrane materials under tensile loading, Journal of Composite Materials, 22, 1, pp. 98-103, (2005)
  • [4] Zou Z.Y., Han J., Liu H.F., Et al., Study on tensile properties of PVC building materials, Journal of Zhejiang Sci-Tech University, 27, 2, pp. 186-190, (2010)
  • [5] Lou R.A., Hua L., Ni J., Et al., Cyclic test of architectural PVC membrane materials under biaxial orthogonality tensile loads, Journal of Shanghai University: Natural Science Edition, 15, 6, pp. 615-620, (2009)
  • [6] Wang L.G., Chen W.J., Gao C.J., Test on biaxial shear mechanical performance of polyester fabric-polyvinyl chloride-pol-yvinylidene fluoride membrane, Acta Materiae Compositae Sinica, 32, 4, pp. 1118-1124, (2015)
  • [7] Chen J.W., Chen W.J., Zhao B., Study on tensile mechanical constants and elastic properties of materials circulation aerostat membrane, Journal of Hunan University: Natural Science Edition, 6, pp. 40-46, (2013)
  • [8] Chen J.W., Analysis on tearing strength of envelope materials under centralcrack tearing, Acta Materiae Compositae Sinica, 33, 3, pp. 666-674, (2016)
  • [9] Bridgens B.N., Gosling P.D., A Predictive Fabric Model for Membrane Structure Design, Textile Composites and Inflatable Structures II, pp. 35-50, (2008)
  • [10] Student R.E.U., Cintron R., Mentor R.E.U., Et al., Strain measurements with the digital image correlation system Vic-2D, System, 106, pp. 1-22, (2008)
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