Steel and Composite Structures
Volume 46, Number 1, 2023, pages 143-152
DOI: 10.12989/scs.2023.46.1.143
Application of computer algorithms for modelling and numerical solution of dynamic bending
Jianzhong Qiu, Naichang Dai and Akbar Shafiei Alavijeh
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