Advances in aircraft and spacecraft science

  • 제5권1호
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  • Pages.21-49
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  • 2018
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  • 2287-528X(pISSN)
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  • 2287-5271(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Geometrical nonlinear bending characteristics of SWCNTRC doubly curved shell panels

  • Chavan, Shivaji G. (Department of Mechanical Engineering, S.V.N.I.T) ;
  • Lal, Achchhe (Department of Mechanical Engineering, S.V.N.I.T)
  • 투고 : 2017.03.07
  • 심사 : 2017.09.05
  • 발행 : 2018.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, geometric nonlinear bending characteristics of single wall carbon nanotube reinforced composite (SWCNTRC) doubly curved shell panels subjected to uniform transversely loadings are investigated. The nonlinear mathematical model is developed for doubly curved SWCNTRC shell panel on the basis of higher-order shear deformation theory and Green- Lagrange nonlinearity. All nonlinear higher order terms are included in the mathematical model. The effective material properties of SWCNTRC are estimated by using Eshelby-Mori-Tanaka micromechanical approach. The governing equation of the shell panel is obtained using the total potential energy principle and a Newton-Raphson iterative method is employed to compute the nonlinear displacement and stresses. The present results are compared with published literature. The effect of SWCNT volume fraction, width-to-thickness ratio, radius-to-width ratio (R/a), boundary condition, linear and nonlinear deflection, stresses and different types of shell geometry on nonlinear bending response is investigated.

키워드

참고문헌

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