Structural Engineering and Mechanics

  • 제21권4호
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  • Pages.407-422
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  • 2005
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effects of plate slenderness on the ultimate strength behaviour of foam supported steel plate elements

  • Pokharel, Narayan (School of Urban Development, Queensland University of Technology) ;
  • Mahendran, Mahen (School of Urban Development, Queensland University of Technology)
  • 투고 : 2004.11.24
  • 심사 : 2005.07.29
  • 발행 : 2005.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

Plate elements in fully profiled sandwich panels are generally subjected to local buckling failure modes and this behaviour is treated in design by using the conventional effective width method for plates with a width to thickness (b/t) ratio less than 100. If the plate elements are very slender (b/t > 1000), the panel failure is governed by wrinkling instead of local buckling and the strength is determined by the flexural wrinkling formula. The plate elements in fully profiled sandwich panels do not fail by wrinkling as their b/t ratio is generally in the range of 100 to 600. For this plate slenderness region, it was found that the current effective width formula overestimates the strength of the fully profiled sandwich panels whereas the wrinkling formula underestimates it. Hence a new effective width design equation has been developed for practical plate slenderness values. However, no guidelines exist to identify the plate slenderness (b/t) limits defining the local buckling, wrinkling and the intermediate regions so that appropriate design rules can be used based on plate slenderness ratios. A research study was therefore conducted using experimental and numerical studies to investigate the effect of plate slenderness ratio on the ultimate strength behaviour of foam supported steel plate elements. This paper presents the details of the study and the results.

키워드

참고문헌

  1. Davies, J.M. (2001), Light Weight Sandwich Construction, UK: Blackwell Science
  2. Davies, J.M. and Hakmi, M.R. (1990), 'Local buckling of profiled sandwich plates', Proc. IABSE Symposium, Mixed Structures Including New Materials, Brussels, September, 533-538
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  7. Mahendran, M. and McAndrew, D. (2003), 'Flexural wrinkling strength of lightly profiled sandwich panels with transverse joints in the foam core', Advances in Struct. Eng, 6(4), 325-337 https://doi.org/10.1260/136943303322771709
  8. Pokharel, N. and Mahendran, M. (2003), 'Experimental investigation and design of sandwich panels subject to local buckling effects', J. Constructional Steel Research, 59(12), 1533-1552 https://doi.org/10.1016/S0143-974X(03)00084-1
  9. Pokharel, N. and Mahendran, M. (2004a), 'Finite element analysis and design of sandwich panels subject to local buckling effects', Thin-Walled Structures, 42(4), 589-611 https://doi.org/10.1016/j.tws.2003.08.002
  10. Pokharel, N. and Mahendran, M. (2004b), 'Local buckling behaviour and design of profiled sandwich panels', Australian J. Struct. Eng, 5(3), 185-198 https://doi.org/10.1080/13287982.2004.11464937
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피인용 문헌

  1. Distributional solutions of bending problems for continuous sandwich panels with thin facings vol.12, pp.1, 2012, https://doi.org/10.1016/j.acme.2012.03.003