Authors | حسین وثوق,فرشید احمدی,سعید گلابی |
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Journal | Structural Engineering and Mechanics |
Page number | 129 |
Volume number | 87 |
IF | 2.998 |
Paper Type | Full Paper |
Published At | 2023-07-25 |
Journal Grade | Scientific - research |
Journal Type | Electronic |
Journal Country | Iran, Islamic Republic Of |
Journal Index | SCOPUS ,JCR |
Abstract
In this paper, dynamic buckling of truncated conical shell made of carbon nanotubes (CNTs) composite is studied. In aerospace industries, this category of tructures is utilized extensively due to wide range of engineering applications. To calculate the effective material properties of the nanocomposite, The Mori-Tanaka model is applied. Also, the motion equations are derived with the assistance of the first order shear deformation theory (FSDT), Hamilton’s principle and energy method. Besides, In order to solve motion equations and analyze dynamic instability region (DIR) of the structure, mixed model of differential uadrature method (DQM) and Bolotin’s method is used. Moreover, investigation of the different parameters effects such as geometrical parameters and volume fraction of CNTs on the analysis of the DIR of the structure is done. In accordance with the obtained results, the DIR will occur at higher frequencies by increasing the volume fraction of CNTs.
tags: Bolotin; DQM; Dynamic buckling; Nanocomposite; Truncated conical shell