Structural Engineering and Mechanics

  • 제5권5호
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  • Pages.609-624
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  • 1997
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Multiple cutout optimization in composite plates using evolutionary structural optimization

  • Falzon, Brian G. (Department of Aeronautics, Imperial College of Science, Technology and Medicine) ;
  • Steven, Grant P. (Department of Aeronautical Engineering, University of Sydney) ;
  • Xie, Mike Y. (Department of Civil and Building Engineering, Victoria University of Technology)
  • 발행 : 1997.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

The optimization of cutouts in composite plates was investigated by implementing a procedure known as Evolutionary Structural Optimization. Perforations were introduced into a finite element mesh of the plate from which one or more cutouts of a predetermined size were evolved. In the examples presented, plates were rejected from around each evolving cutout based on a predefined rejection criterion. The limiting ply within each plate element around the cutout was determined based on the Tsai-Hill failure criterion. Finite element plates with values below the product of the average Tsai-Hill number and a rejection criterion were subsequently removed. This process was iterated until a steady state was reached and the rejection criterion was then incremented by an evolutionary rate and the above steps repeated until the desired cutout area was achieved. Various plates with differing lay-up and loading parameters were investigated to demonstrate the generality and robustness of this optimization procedure.

키워드

참고문헌

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피인용 문헌

  1. Optimum Design of Composite Structures: A Literature Survey (1969–2009) vol.36, pp.1, 2017, https://doi.org/10.1177/0731684416668262
  2. Shape Optimization of Cutouts in a Composite Plate by Growth-Strain Method vol.48, pp.4, 2005, https://doi.org/10.1299/jsmea.48.437
  3. A strength-based multiple cutout optimization in composite plates using fixed grid finite element method vol.73, pp.4, 2006, https://doi.org/10.1016/j.compstruct.2005.02.014
  4. Reducing tensile stress concentration in perforated hybrid laminate by genetic algorithm vol.67, pp.13, 2007, https://doi.org/10.1016/j.compscitech.2006.09.022
  5. Shape Optimization in Laminated Composite Plates by Growth-Strain Method, Part Two - Stress Control vol.261-263, pp.1662-9795, 2004, https://doi.org/10.4028/www.scientific.net/KEM.261-263.839
  6. 체적제어에 의한 적층 복합재 구멍의 형상 최적화 vol.28, pp.9, 1997, https://doi.org/10.3795/ksme-a.2004.28.9.1337