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http://dx.doi.org/10.6108/KSPE.2021.25.6.074

Development and Evaluation of Large Scale Composite Lattice Structures  

Kim, Donggeon (Design Technology Center, Hankuk Fiber Group)
Doh, Youngdae (Design Technology Center, Hankuk Fiber Group)
Kim, Gensang (Design Technology Center, Hankuk Fiber Group)
Kim, Myungjoo (Defence Department, Hankuk Fiber Group)
Lee, Sangwoo (Defence Department, Hankuk Fiber Group)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.25, no.6, 2021 , pp. 74-86 More about this Journal
Abstract
The composite lattice structure is a structure that supports the required load with the minimum weight and thickness. Composite lattice structure is manufactured by the filament winding process using impregnating high-strength carbon fiber with an epoxy resin. Filament winding process can laminate and manufacture only structurally necessary parts, composite lattice structure can be applied to aircraft fuselages, satellite and launch vehicles, and guided weapons to maximize weight reduction. In this paper, the development and evaluation of the composite lattice structure corresponding to the entire process from design, analysis, fabrication, and evaluation of large-scale cylindrical and conical composites lattice structure were performed. To be applicable to actual projectiles and guided weapons, we developed a cylindrical lattice structure with a diameter of 2,600 mm and a length of 2,000 mm, and a conical lattice structure with an upper diameter of 1,300 mm, a lower diameter of 2,500 mm, and a length of 900 mm. The performance of the developed composite lattice structure was evaluated through a load test.
Keywords
Composite Lattice Structure; Rocket Launch Vehicle; Filament Winding;
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