한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제23권5호
  • /
  • Pages.75-89
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  • 2019
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  • 1226-6027(pISSN)
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  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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코로게이트 3층 샌드위치 패널 구조체 물성 및 구조해석

Mechanical Properties and Structural Analyses for the Corrugated 3 Layered Sandwich Panels

  • Yun, Su-Jin (The 4th R&D Institute - 5th Directorate, Agency for Defense Development) ;
  • Heo, Yeup (The 4th R&D Institute - 5th Directorate, Agency for Defense Development) ;
  • Gil, Hyun-Young (The 4th R&D Institute - 5th Directorate, Agency for Defense Development) ;
  • Park, Dong-Chang (The 4th R&D Institute - 5th Directorate, Agency for Defense Development)
  • 투고 : 2019.05.07
  • 심사 : 2019.09.15
  • 발행 : 2019.10.01
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초록

본 연구에서는 경량 코로게이트 3층 샌드위치 패널 구조체와 관련하여 구조해석 및 분석결과들에 대해서 언급되었다. 기계적 물성의 획득을 위해 코로게이트 변형거동에 기반을 둔 분석식이 이용되었으며 이 때 보다 실제적인 물성을 얻기 위해 위의 식은 수정되었다. 한편 본 구조체는 일축 섬유 강화 복합재와 유사성을 가지므로 복합재 균질화기법을 통해서도 비등방 기계적 물성이 획득되었으며 두 가지 기법으로 얻은 물성은 3층 구조체의 형상 변수에 따른 특정 하중에 대한 구조해석에 적용되었으며 그 결과 또한 비교되었다.

In the present work, structural analyses for light weight corrugate 3 layered sandwich panels are carried out. The mechanical properties of the sandwich panels are obtained using the modified analytical closed form based on a corrugated panel deformation and the homogenization scheme of an uniaxial composite. Subsequently, the mechanical properties estimated by the two aforementioned methods were employed for the numerical analyses for the corrugated sandwich panels under the specifically loading conditions, and a comparison between two methods was also made.

키워드

참고문헌

  1. Ko, W.L. "Elastic Constants for Super-plastically Formed-Diffusion Bonded Corrugated Sandwich Core", NASA Technical Paper 1562.
  2. Noor, A.K., Burton, W.S., and Bert, C.W., "Computational Models for Sandwich Panels and Shells", Appl. Mech. Rev., Vol. 49, pp. 155-199, 1996. https://doi.org/10.1115/1.3101923
  3. Isaksson, P., Krusper, A., and Gradin, P.A., "Shear Correction Factors for Corrugated Core Structures", Composite Structures, Vol. 80, pp. 123-130, 2007. https://doi.org/10.1016/j.compstruct.2006.04.066
  4. Fung, T.C., Tan, K.H., and Lok, T.S., "Elastic Constants for Z-Core Sandwich Panels", J. Struct. Eng., Vol. 120, pp. 3046-3055, 1994. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:10(3046)
  5. Martinez, O.A., Sankar, B.V., Haftka, R.T., and Bapanapalli, S.K., "Micromechanical Analysis of Composite Corrugated-Core Sandwich Panels for Integral Thermal Protection Systems", AIAA JOURNAL, Vol. 45, pp. 2323-2336, 2007. https://doi.org/10.2514/1.26779
  6. Lok, T.S. and Cheng, Q.H., "Elastic Stiffness Properties and Behavior of Truss-Core Sandwich Panel", J. Struct. Eng., Vol. 126, pp. 552-559, 2000. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:5(552)
  7. Carlsson, L.A., Nordstrand, T., and Westerlind, B., "On the Elastic Stiffnesses of Corrugated Core Sandwich", J. of Sandwich Structures and Materials, Vol. 3, pp. 253-267, 2001. https://doi.org/10.1106/BKJF-N2TF-AQ97-H72R
  8. Buannic, N., Cartraud, P., and Quesnel, T., "Homogenization of Corrugated Core Sandwich Panels", Composite Structures, Vol. 59, pp. 299-312, 2003. https://doi.org/10.1016/S0263-8223(02)00246-5
  9. Chang, W.S., Ventsel, E., Krauthammer, T., and John, J., "Bending Behavior of Corrugated-Core Sandwich Plates", Composite Structures, Vol. 70, pp. 81-89, 2005. https://doi.org/10.1016/j.compstruct.2004.08.014
  10. He, L., Cheng, Y.S., and Liu, J., "Precise Bending Stress Analysis of Corrugated-Core, Honeycomb-Core and X-core Sandwich Panels", Composite Structures, Vol. 94, pp. 1656-1668, 2012. https://doi.org/10.1016/j.compstruct.2011.12.033
  11. Bartolozzi, G., Pierini, M., Orrenius, U., and Baldanzini, N., "An Equivalent Material Formulation for Sinusoidal Corrugated Cores of Structural Sandwich Panels", Composite Structures, Vol. 100, pp. 173-185, 2013. https://doi.org/10.1016/j.compstruct.2012.12.042
  12. Kooistra, G.W., Deshpande, V., Wadley, H.N.G., "Hierarchical Corrugated Core Sandwich Panel Concepts", Journal of Applied Mechanics, Vol. 74, pp. 259-268, 2007. https://doi.org/10.1115/1.2198243
  13. Lok, T.S. and Cheng, Q.H., "Free and Forced Vibration of Simply Supported, Orthotropic Sandwich Panel", Computers Structures, Vol. 79, pp. 301-312, 2001. https://doi.org/10.1016/S0045-7949(00)00136-X
  14. Abaimov, S.G., Khudyakova, A.A., and Lomov, S.V., "On the Closed Form Expression of the Mori-Tanaka Theory Prediction for the Engineering Constants of a Unidirectional Fiber-Reinforced Ply", Composite Structures, Vol. 142, pp. 1-6, 2016. https://doi.org/10.1016/j.compstruct.2016.02.001
  15. Pavan, R.C., Creus, G.J., Maghous, S., "A Simplified Approach to Continuous Damage of Composite Materials and Micromechanical Analysis", Composite Structures, Vol. 91, pp. 84-94, 2009. https://doi.org/10.1016/j.compstruct.2009.04.044