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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.36 No.6
- 발행연도
- 2020.1
- 수록면
- 711 - 727 (17page)
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초록· 키워드
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In the present research, the free vibration analysis of functionally graded (FG) nanocomposite deep spherical shells reinforced by graphene platelets (GPLs) on elastic foundation is performed. The elastic foundation is assumed to be Winkler-Past ernak-type. It is also assumed that graphaene platelets are randomly oriented and uniformly dispersed in each layer of the nanocomposite shell. Volume fraction of the graphene platelets as nanofillers may be different in the layers. The modified HalpinTsai model is used to approximate the effective mechanical properties of the multilayer nanocomposite. With the aid of the first order shear deformation shell theory and implementing Hamilton’s principle, motion equations are derived. Afterwards, the generalized differential quadrature method (GDQM) is utilized to study the free vibration characteristics of FG-GPLRC spherical shell. To assess the validity and accuracy of the presented method, the results are compared with the available researches. Finally, the natural frequencies and corresponding mode shapes are provided for different boundary conditions, GPLs volume fraction, types of functionally graded, elastic foundation coefficients, opening angles of shell, and thickness-to-radius ratio.
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참고문헌 (48)
참고문헌 신청
J. C. Halpin Affdl / 1976 / The Halpin-Tsai equations: A review / Polymer Engineering and Science 16(5):344~352
Surkay D. Akbarov / 2016 / Natural vibration of the three-layered solid sphere with middle layer made of FGM: three-dimensional approach / Structural Engineering and Mechanics, An Int＇l Journal 57(2):239~263
B. Anirudh / 2019 / A comprehensive analysis of porous graphene-reinforced curved beams by finite element approach using higher-order structural theory: Bending, vibration and buckling / Composite Structures 222:110899
R. Ansari / 2016 / Vibrational analysis of functionally graded carbon nanotube-reinforced composite spherical shells resting on elastic foundation using the variational differential quadrature method / European Journal of Mechanics - A/Solids 60:166~182
Edoardo Artioli / 2005 / Static analysis of shear-deformable shells of revolution via G.D.Q. method / Structural Engineering and Mechanics, An Int＇l Journal 19(4):459~475
Surkay D. Akbarov / 2016 / Natural vibration of the three-layered solid sphere with middle layer made of FGM: three-dimensional approach / Structural Engineering and Mechanics, An Int＇l Journal 57(2):239~263
B. Anirudh / 2019 / A comprehensive analysis of porous graphene-reinforced curved beams by finite element approach using higher-order structural theory: Bending, vibration and buckling / Composite Structures 222:110899
R. Ansari / 2016 / Vibrational analysis of functionally graded carbon nanotube-reinforced composite spherical shells resting on elastic foundation using the variational differential quadrature method / European Journal of Mechanics - A/Solids 60:166~182
Edoardo Artioli / 2005 / Static analysis of shear-deformable shells of revolution via G.D.Q. method / Structural Engineering and Mechanics, An Int＇l Journal 19(4):459~475
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