Structural Engineering and Mechanics

  • 제74권2호
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  • Pages.255-266
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  • 2020
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Optimum design of stiffened plates for static or dynamic loadings using different ribs

  • Virag, Zoltan (Institute of Mining and Geotechnical Engineering, University of Miskolc) ;
  • Jarmai, Karoly (Institute of Energy Engineering and Chemical Machinery, University of Miskolc)
  • 투고 : 2017.08.10
  • 심사 : 2019.12.15
  • 발행 : 2020.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

The main requirements of modern welded metal structures are the load-carrying capacity (safety), fitness for production, and economy. The primary objective of attaching longitudinal stiffeners is to improve the buckling strength of relatively thin compression panels. This paper gives several comparisons for stiffened plates with different loadings (static, dynamic), different shape of stiffeners (flat, L-shape, trapezoidal), different steel grades, and different welding technologies (SMAW, GMAW, SAW), different costs to show the necessity of a combination of design, fabrication and economic aspects. Safety and fitness for production are guaranteed by fulfilling the design and fabrication constraints. The economy is achieved by minimizing the cost function. It is shown that the optimum sizes depend on the welding technology, the material yield stress, the profile of the stiffeners, the load cycles and the place of the production.

키워드

과제정보

The research was supported by the EFOP-3.6.1-2016- 16-00011 "Younger and Renewing University - Innovative Knowledge City - institutional development of the University of Miskolc aiming at intelligent specialisation" project implemented in the framework of the Széchenyi 2020 program. The realization of this project is supported by the European Union, co-financed by the European Social Fund.

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