Structural Engineering and Mechanics

  • 제40권4호
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  • Pages.501-515
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  • 2011
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A study on transverse vibration characteristics of a sandwich plate with asymmetrical faces

  • Ahn, Namshik (Department of Architectural Engineering, Free Form Architecture Institute, Sejong University) ;
  • Lee, Kangsu (Korean Register of Shipping, Green and Industrial Technology Center)
  • 투고 : 2011.01.07
  • 심사 : 2011.10.12
  • 발행 : 2011.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

Sandwich elements have high flexural rigidity and high strength per density. They also have excellent anti-vibration and anti-noise characteristics. Therefore, they are used for structures of airplanes and high speed ships that must be light, as well as strong. In this paper, the Reissner-Mindlin's plate theory is studied from a Hamilton's principle point of view. This theory is modified to include the influence of shear deformation and rotary inertia, and the equation of motion is derived using energy relationships. The theory is applied to a rectangular sandwich model which has isotropic, asymmetrical faces and an isotropic core. Investigations are conducted for five different plate thicknesses. These plates are identical to the sandwich plates currently used in various structural elements of surface effect ships (SES). The boundary conditions are set to simple supports and fixed supports. The elastic and shear moduli are obtained from the four-point bending tests on the sandwich beams.

키워드

참고문헌

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피인용 문헌

  1. Analytical solution for bending analysis of soft-core composite sandwich plates using improved high-order theory vol.44, pp.1, 2012, https://doi.org/10.12989/sem.2012.44.1.015
  2. Vibration analysis of double-bonded sandwich microplates with nanocomposite facesheets reinforced by symmetric and un-symmetric distributions of nanotubes under multi physical fields vol.64, pp.3, 2011, https://doi.org/10.12989/sem.2017.64.3.361