Study of the Characteristic of Composite Sandwich Panel with Cut-Out under Compression Load

Jong Woong Lee; Cheol Won Kong; Young Soon Jang; Young Shin Lee

doi:10.4028/www.scientific.net/KEM.525-526.457

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 525-526Study of the Characteristic of Composite Sandwich...

Study of the Characteristic of Composite Sandwich Panel with Cut-Out under Compression Load

Abstract:

A sandwich construction is applied to wing skins and fuselages, along with many other structures in aeronautical applications, due to its increased stiffness and reduced weight. In this paper, a face-sheet composed of plain-woven composite laminate that uses prepregs (HPW193/RS3232) and a core material of aluminum honeycomb (Al5052/F40-0.0025) is used. Launch vehicle structures have cut-out areas to check the status of the payload and electric equipment. Cut-out areas reduce the structural stiffness of the launch vehicle structure. Changes in the shape of cut-outs can cause a difference in load support ability of the structure. Compression tests and FEM analysis were performed on composite sandwich panels with various types of cut-out, but with the same overall area.

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Periodical:

Key Engineering Materials (Volumes 525-526)

Pages:

457-460

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.525-526.457

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Online since:

November 2012

Authors:

Jong Woong Lee, Cheol Won Kong, Young Soon Jang, Young Shin Lee

Keywords:

Composite Sandwich Panel, Compression Test, Cut-Out

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References

[1] C. W. Kong, S. W. Eun, J. S. Park, H. S. Lee, Y. S. Jang, Y. M. Yi and G. R. Cho, The effect of honeycomb core on the mechanical properties of composite sandwich, Key Engineering Materials, Vol. 297-300, (2005).

DOI: 10.4028/www.scientific.net/kem.297-300.2752

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DOI: 10.1177/002199830003401402

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