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http://dx.doi.org/10.5139/JKSAS.2019.47.10.687

Design and Analysis of Section-divided Circular Composite Wing Spar  

Kim, Ki-Hoon (Department of Aerospace Engineering, University of Ulsan)
Koo, Kyo-Nam (Department of Aerospace Engineering, University of Ulsan)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.47, no.10, 2019 , pp. 687-694 More about this Journal
Abstract
A circular composite spar in the wing of ultra-light aircraft is subjected to both bending moment and transverse shear loads. However, the beam being used in the aircraft may be inefficient because the design would not take into account the characteristics of the circular tube that supports the bending moment in top and bottom arc parts and the transverse load in left and right ones. Therefore, it is necessary to efficiently fabricate the circular tube beam by properly selecting the stacking sequences or the laminated composite structure. In order to increase both bending and transverse shear strengths of the beams, in this study, a cross-section of circular tube is divided into four arcs: top, bottom, left and right ones. The commercial program, MSC/NASTRAN is used to calculate vertical displacement and the normal and shear strains with variation of parameters such as division angle of arc and fiber orientation. Based on the results, the effective parameters for the new circular composite beam are presented to increase its bending and shear strengths.
Keywords
Composite Materials; Circular Tube; Finite Element Method; Stress Analysis; Wing Spar;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Schoeberl, E., "From Sunrise to Solar-Impulse 34 Years of Solar Powered Flight," Technical Soaring, Vol. 32, No. 4, 2008, pp. 115-121.
2 Hale, J., "Boeing 787 from the Ground Up," The Boeing Company Aero Quarterly, Issue 24, Quarter 04, 2006, pp. 17-23.
3 Tomblin, J., "Overview of Composite Material Trends in Aviation Manufacturing," National Institute for Aviation Research, Wichita State University, 2006.
4 Shin, J. W., et al., "Structural Development for Human Powered Aircraft," Journal of the Korean Society for Aviation and Aeronautics, Vol. 21, No. 1, 2013, pp. 62-67.   DOI
5 Hwang, S. J., Kim, S. G., and Lee, Y. G., "Developing High Altitude Long Endurance Solarpowered Unmanned Aerial Vehicle," Journal of Aerospace System Engineering, Vol. 10, No. 1, 2016, pp. 59-65.   DOI
6 Nam, H. W., et al., "Design and Manufacturing of Human Powered Aircraft," Capstone Project Report, University of Ulsan, 2013, pp. 5-7.
7 Lee, C. R., et al., "HPA Structure Design and Power Measurement," Aerospace Engineering and Technology, Vol. 12, No. 2, 2013, pp. 209-220.
8 Shin, J. W., Park, S. W., Lee, M. H., and Kim, T. U., "Light Wing Spar Design for High Altitude Long Endurance UAV," Journal of the Korean Society for Aviation and Aeronautics, Vol. 22, No. 2, 2014, pp. 27-33.   DOI
9 Daniel, I. M., and Ishai, O., Engineering Mechanics of Composite Materials, Oxford University Press, 1994, pp. 57-79.