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Earthquakes and Structures Volume 26, Number 4, April 2024 , pages 299-309 DOI: https://doi.org/10.12989/eas.2024.26.4.299 |
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MCST bending formulation of a cylindrical micro-shell based on TSDT |
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Mohammad Arefi
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| Abstract | ||
| The present paper develops application of third-order shear deformation theory (TSDT) and modified couple stress theory (MCST) to size-dependent bending analysis of a functionally graded cylindrical micro-shell. The radial and axial displacement components are described based on TSDT for more accurate analysis. The effect of small scales is accounted based on MCST. The principle of virtual work is used for derivation of bending governing equations. The solution is presented for a simply-supported boundary condition to account the influence of various important parameters such as micro length scale parameter, in-homogeneous index and some dimensionless geometric parameters such as length to radius and length to thickness ratios on the bending results. A comparative analysis is presented to examine the effect of order of employed shear deformation theory on the axial and radial displacements. | ||
| Key Words | ||
| axial and radial displacements; functionally graded cylindrical micro-shell; micro length scale parameter; modified couple stress theory; third order shear deformation theory | ||
| Address | ||
| Faculty of Mechanical Engineering, Department of Solid Mechanics, University of Kashan, Kashan 87317-51167, Iran | ||