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다양한 기하학적 형상을 갖는 복합 적층쉘 구조의 유한차분해석 KCI 등재

Finite Difference Analysis of Laminated Composite Shell Structures with Various Geometrical Shapes

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복합신소재구조학회 논문집 (Journal of the Korean Society for Advanced Composite Structures)
한국복합신소재구조학회 (Korean Society for Advanced Composite Structures)
초록

This paper analyzed the partial differential equations of laminated composite shells of revolution by using the finite difference method. The proof that numerical results are reasonable and accurate is obtained through converge ratio analysis and commercial program LUSAS for the structural analysis. The purpose of this study is to examine closely the engineering advantages and to analyze the structural behaviors of the anisotropic shells of revolution. Thus, the relevant reinforcement and most suitable arrangement of fiber to produce the highest strength are proposed through the numerical results according to a variety of parameter study. Namely, the distribution of displacements and stress resultants are analyzed according to the change of meridian's curvature, the ratio of height-width of shell, subtended angle, fiber angle, and so on. Using these distribution, the most suitable shell may be proposed to produce the highest strength. Also, the configuration of the entire laminated composite conical shells is analysed, and a variety of the design criterion of circular conical shell are proposed and studied in engineering view points.

저자
  • 박해길(SK건설(주) 과장) | Park, Hae-Gil
  • 이상열(중부대학교 토목공학과 전임강사) | Lee, Sang-Youl 교신저자
  • 장석윤(서울시립대학교 토목공학과 명예교수, (주)이산 상임고문) | Chang, Suk-Yoon