Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Smart Structures and Systems Volume 27, Number 4, April 2021 , pages 667-678 DOI: https://doi.org/10.12989/sss.2021.27.4.667 |
|
|
|
Thermal postbuckling of shear deformable multiscale hybrid composite beams |
||
Arameh Eyvazian, Chunwei Zhang, Mohammad Alkhedher, Murat Demiral, Afrasyab Khan and Tamer A. Sebaey
|
||
| Abstract | ||
| This research is deal with thermal buckling and post-buckling of carbon nanotube/fiber/polymer composite beams. The beam is considered to be under uniform temperature rise. Firstly, the effective material properties of a two phase nanocomposite consisting of CNT and polymer are extracted. Then, the modified Chamis rule is utilized to obtain the equivalent thermo-mechanical properties of multiscale hybrid composite (MHC). Based on the first order shear deformation theory, Von-Karman type of geometrically nonlinear strain-deformation equations and also the virtual work rule, the equilibrium equations of a three phace composite beam are derived. Bifurcation buckling and also the thermal post-buckling is analysed using the generalized differential quadrature technique. In the thermal buckling phenomena, a linear eigenvalue problem is solved; however, due to the nonlinearity, the thermal postbuckling study is performed using an iterative displacement control strategy. After validation study, several novel results demonstrate the influences of length-to-thickness ratio, agglomeration of applied CNTs and fibers in the composite media and number and orientation of layers on the critical temperature and displacement loading path. | ||
| Key Words | ||
| MHC beam; nonlinear thermal stability; GDQM; displacement control strategy | ||
| Address | ||
| (1) Arameh Eyvazian, Chunwei Zhang: Structural Vibration Control Group, Qingdao University of Technology, Qingdao 266033, China; (2) Arameh Eyvazian: Department of Mechanical Engineering, Politecnico di Milano (Technical University), Via La Masa 1, 20156 Milan, Italy; (3) Mohammad Alkhedher: Mechanical Engineering Department, Abu Dhabi University, Abu Dhabi 59911, UAE; (4) Murat Demiral: College of Engineering and Technology, American University of the Middle East, Kuwait; (5) Afrasyab Khan: Institude of Engineering and Technology, Department of Hydraulics and Hydraulic and Pneumatic Systems, South Ural State University, Lenin Prospect 76, Chelyabinsk, 454080, Russian Federation; (6) Tamer A. Sebaey: Engineering Management Department, College of Engineering, Prince Sultan University, Riyadh, Saudi Arabia; (7) Tamer A. Sebaey: Mechanical Design and Production Department, Faculty of Engineering, Zagazig University, P.O. Box 44519, Zagazig, Sharkia, Egypt. | ||