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Volume 24 Issue 5
May  1998
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Journal of Beijing University of Aeronautics and Astronautics  > 1998  >  24(5): 555-558.
Kou Changhe, Cheng Xiaoquan, Li Zhengnenget al. Prediction of the Compressive Strength for Composite Honeycomb Core Sandwich Panels after Low Speed Impact[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(5): 555-558. (in Chinese)
Citation: Kou Changhe, Cheng Xiaoquan, Li Zhengnenget al. Prediction of the Compressive Strength for Composite Honeycomb Core Sandwich Panels after Low Speed Impact[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(5): 555-558. (in Chinese)
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Prediction of the Compressive Strength for Composite Honeycomb Core Sandwich Panels after Low Speed Impact

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

  • Received Date: 25 Sep 1997
  • Publish Date: 31 May 1998
    Abstract
  • Based on the experimental study of compressive failure mechanisms on composite honeycomb core sandwich panels after low speed impact before, a equivalent delamination was used to replace the low speed impact damage of Nomex honeycomb core sandwich panels in this paper. It was postulated that the edge of sublaminate formed by the equivalent delamination is clamped. The load on which the sublaminate buckled was considered to be compressive failure load. Comparing the results of theory with experiment, it showed that the method of equivalent damage could be used to predict the residual compressive strength of honeycomb core sandwich panels, in the case that the facesheet of sandwich panels had no obvious cracks after low speed impact.

     

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  • 1. 程小全,寇长河,郦正能. 复合材料蜂窝夹芯板低速冲击损伤研究. 复合材料学报, 1998,15(3):124~128 2. 程小全,寇长河,郦正能. 复合材料蜂窝夹芯板低速冲击后的压缩 ．北京航空航天大学学报,1998,24(5):551~554 3. 陈思秋,李思简．对称层板二维的分层屈曲研究．上海交通大学学报, 1989, 23(6):30~39 4. Ashton J E.Approximate solutions for unsymmetrically laminated plates. J C M, 1969, 3:189~191 5. Chai H,Babcock C D. Two-dimensional modelling of compressive failure in delaminated laminates. J C M, 1985, 19:67~98 6. Kassapoglous C.Buckling and failure of elliptical delaminations in laminates under compression. Composite Structure, 1988,9:139~159 7. Kassapoglous C,Abbott R. A correlation parameter for predicting the compressive strength of composite sandwich panels after low speed impact. AIAA-88-2294, 1988 8. Kassapoglous C,Jonas P J , Abbott R. Compressive strength of composite sandwich panel after impact damage:an experimental and analytical study. JCTRER, 1988,10:65~73
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