ANALYSIS OF FREE VIBRATION OF SANDWICH PANELS BASED ON IMPROVED HIGH-ORDER SANDWICH PANEL THEORY

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EFTARI B.; KHALILI S.M.R.; JAFARI A.; MALEKZADEH K.

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Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2012 | Volume:43 | Issue:2 Page(s): 27-33

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Title

ANALYSIS OF FREE VIBRATION OF SANDWICH PANELS BASED ON IMPROVED HIGH-ORDER SANDWICH PANEL THEORY

Author(s)

EFTARI B. | KHALILI S.M.R. | JAFARI A. | MALEKZADEH K. | Issue Writer Certificate

Keywords

SANDWICH PANELQ3

FLEXIBLE COREQ3

IMPROVED HIGHER-ORDER THEORYQ3

FREE VIBRATIONSQ2

Abstract

A new improved high-order theory is presented to investigate the dynamic behavior of SANDWICH PANELs with FLEXIBLE CORE. Shear deformation theory is used for the face sheets while the three-dimensional elasticity theory is used for the core. Displacements in the core are assumed as polynomial with unknown coefficients. Inertia forces, moments of inertia and shear deformations in the core and the face sheets are taken into consideration. Unlike the previous improved theory, the in-plane normal and shear stresses in the core are considered. The governing equations and the boundary conditions are derived by Hamilton's principle. Closed form solution is achieved using the Navier method and solving the eigenvalues. The numerical results of present analysis are compared with the available numerical or theoretical results in the literatures. It indicates that the present new modified theory is more accurate than the other developed theories for SANDWICH PANELs. The variations of the non-dimensional natural frequency with respect to the various geometrical and material parameters are investigated.

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APA: Copy

EFTARI, B., KHALILI, S.M.R., JAFARI, A., & MALEKZADEH, K.. (2012). ANALYSIS OF FREE VIBRATION OF SANDWICH PANELS BASED ON IMPROVED HIGH-ORDER SANDWICH PANEL THEORY. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 43(2), 27-33. SID. https://sid.ir/paper/165896/en

Vancouver: Copy

EFTARI B., KHALILI S.M.R., JAFARI A., MALEKZADEH K.. ANALYSIS OF FREE VIBRATION OF SANDWICH PANELS BASED ON IMPROVED HIGH-ORDER SANDWICH PANEL THEORY. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)[Internet]. 2012;43(2):27-33. Available from: https://sid.ir/paper/165896/en

IEEE: Copy

B. EFTARI, S.M.R. KHALILI, A. JAFARI, and K. MALEKZADEH, “ANALYSIS OF FREE VIBRATION OF SANDWICH PANELS BASED ON IMPROVED HIGH-ORDER SANDWICH PANEL THEORY,” JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), vol. 43, no. 2, pp. 27–33, 2012, [Online]. Available: https://sid.ir/paper/165896/en

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