Steel and Composite Structures

  • 제14권4호
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  • Pages.397-408
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  • 2013
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Pareto optimum design of laminated composite truncated circular conical shells

  • Topal, Umut (Karadeniz Technical University, Of Faculty of Technology, Department of Civil Engineering)
  • 투고 : 2012.11.21
  • 심사 : 2013.03.12
  • 발행 : 2013.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper deals with multiobjective optimization of symmetrically laminated composite truncated circular conical shells subjected to external uniform pressure load and thermal load. The design objective is the maximization of the weighted sum of the critical buckling load and fundamental frequency. The design variable is the fibre orientations in the layers. The performance index is formulated as the weighted sum of individual objectives in order to obtain optimal solutions of the design problem. The first-order shear deformation theory (FSDT) is used in the mathematical formulation of laminated truncated conical shells. Finally, the effect of different weighting factors, length-to-radius ratio, semi-cone angle and boundary conditions on the optimal design is investigated and the results are compared.

키워드

참고문헌

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