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Volume 27 Issue 2
Feb.  2001
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Journal of Beijing University of Aeronautics and Astronautics  > 2001  >  27(2): 167-170.
XU De-wei, LI Zheng-neng, CUI De-ganget al. Bend/Twist Coupling Effects of Unsymmetric and Unbalanced Laminate[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(2): 167-170. (in Chinese)
Citation: XU De-wei, LI Zheng-neng, CUI De-ganget al. Bend/Twist Coupling Effects of Unsymmetric and Unbalanced Laminate[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(2): 167-170. (in Chinese)
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Bend/Twist Coupling Effects of Unsymmetric and Unbalanced Laminate

  • 1.

    Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics

  • 2. Science and Technology Bureau of AVIC

  • Received Date: 18 Oct 1999
  • Publish Date: 28 Feb 2001
    Abstract
  • In order to obtain particular twist angle of composite structure, utilizing the coupling effects of unsymmetric&unbalanced laminate is a considerable approach. An unsymmetric&unbalanced laminate is formed by adding a sub-laminate into the symmetric laminate. How to lay the sub-laminate and what the optimal orientation angle of the sub-laminate is are studied in order to make the most use of coupling effects by nonlinear finite element methods. Test results of honeycomb core sandwich composite laminate simulating the wing-box under the load of aerodynamics demonstrate that the calculating results well accord with the test results and unsymmetric&unbalanced laminates have prospective engineering applications.

     

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  • [1] Michael H Shirk,Terrace J Hertz. Aeroelastic tailoring—theory, practice, and promise[J].J Aircraft,1985,23(1):6~18.  [2] Terrace A Weisshaar. Aeroelastic tailoring of forward swept composite wings[J].J Aircraft,1981,18(8):669~676．  [3] 琼斯R M.复合材料力学[M].朱颐龄译.上海:上海科学技术出版社,1981.  [4] 航空航天工业部科学技术研究院.复合材料设计手册[M].北京:航空工业出版社,1990.
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