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Three dimensional frequency analysis of bidirectional functionally graded thick cylindrical shells using a radial point interpolation method (RPIM)

Reza Pilafkan (Institutionen för tillämpad mekanik, Dynamik) ; Peter D. Folkow (Institutionen för tillämpad mekanik, Dynamik) ; Mansour Darvizeh ; Abolfazl Darvizeh
European Journal of Mechanics. A, Solids (0997-7538). Vol. 39 (2013), p. 26-34.
[Artikel, refereegranskad vetenskaplig]

This paper considers a functionally graded (FG) shell using a meshless radial point interpolation method (RPIM). The material is assumed to be bidirectional FG, where the variation is present in both the radial and the axial directions. Based on the three-dimensional equations of motion, the frequency equations are stated using RPIM. Numerical results are presented for a thick shell for various boundary conditions. These results illustrate the influence from the material variation concerning eigenfrequencies and eigenmodes. In addition, the study shows that the RPIM is an efficient method to solve dynamical shell problems.

Nyckelord: functionally graded (FG) cylindrical shell, radial point interpolation method (RPIM), eigenfrequency, eigenmode



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Denna post skapades 2013-01-11. Senast ändrad 2015-12-17.
CPL Pubid: 170250

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Dynamik

Ämnesområden

Materialvetenskap
Fastkroppsmekanik

Chalmers infrastruktur