Structural Engineering and Mechanics

  • 제24권4호
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  • Pages.447-461
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Vibrations and thermal stability of functionally graded spherical caps

  • Prakash, T. (Department of Applied Mechanics, Indian Institute of Technology Delhi) ;
  • Singh, M.K. (Department of Applied Mechanics, Indian Institute of Technology Delhi) ;
  • Ganapathi, M. (Institute of Armament Technology)
  • 투고 : 2005.12.13
  • 심사 : 2006.06.01
  • 발행 : 2006.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

Here, the axisymmetric free flexural vibrations and thermal stability behaviors of functionally graded spherical caps are investigated employing a three-noded axisymmetric curved shell element based on field consistency approach. The formulation is based on first-order shear deformation theory and it includes the in-plane and rotary inertia effects. The material properties are graded in the thickness direction according to the power-law distribution in terms of volume fractions of the constituents of the material. The effective material properties are evaluated using homogenization method. A detailed numerical study is carried out to bring out the effects of shell geometries, power law index of functionally graded material and base radius-to-thickness on the vibrations and buckling characteristics of spherical shells.

키워드

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피인용 문헌

  1. Thermal post-buckling analysis of uniform slender functionally graded material beams vol.36, pp.5, 2006, https://doi.org/10.12989/sem.2010.36.5.545
  2. Thermal buckling analysis of shear deformable laminated orthotropic plates by differential quadrature vol.12, pp.2, 2006, https://doi.org/10.12989/scs.2012.12.2.129
  3. Non-linear free vibrations and post-buckling analysis of shear flexible functionally graded beams vol.44, pp.3, 2006, https://doi.org/10.12989/sem.2012.44.3.339