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Steel and Composite Structures Volume 46, Number 1, January10 2023 , pages 143-152 DOI: https://doi.org/10.12989/scs.2023.46.1.143 |
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Application of computer algorithms for modelling and numerical solution of dynamic bending |
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Jianzhong Qiu, Naichang Dai and Akbar Shafiei Alavijeh
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| Abstract | ||
| In this paper, static and dynamic bending of nanocomposite micro beam armed with CNTs considering agglomeration effect is studied. The structural damping is considered by Kelvin-Voigt model. The agglomeration effects are assumed using Mori-Tanaka model. The micro beam is modeled by third order shear deformation theory (TSDT). The motion equations are derived by principle of Hamilton's and energy method assuming size effects on the basis of Eringen theory. Using differential quadrature method (DQM) and Newmark method, the static and dynamic deflections of the structure are obtained. The effects of agglomeration and CNTs volume percent, damping of structure, nonlocal parameter, length and thickness of micro-beam are presented on the static and dynamic deflections of the nanocomposite structure. Results show that with increasing CNTs volume percent, the static and dynamic deflections are decreased. In addition, enhancing the nonlocal parameter yields to higherstatic and dynamic deflections. | ||
| Key Words | ||
| agglomeration effects; CNTs; dynamic response; micro-beam; TSDT | ||
| Address | ||
| Jianzhong Qiu:Wenzhou Technician Institute, Wenzhou 32500, Zhejiang, China Naichang Dai:Wenzhou Polytechnic Wenzhou 32500, Zhejiang, China Akbar Shafiei Alavijeh:Department of Civil Engineering, Jasb Branch, Jasb, Iran | ||