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Steel and Composite Structures Volume 34, Number 2, January25 2020 , pages 289-297 DOI: https://doi.org/10.12989/scs.2020.34.2.289 |
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Post-buckling analysis of Mindlin Cut out-plate reinforced by FG-CNTs |
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Mohsen Motezaker and Arameh Eyvazian
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| Abstract | ||
| In the present research post-buckling of a cut out plate reinforced through carbon nanotubes (CNTs) resting on an elastic foundation is studied. Material characteristics of CNTs are hypothesized to be altered within thickness orientation which are calculated according to Mori-Tanaka model. For modeling the system mathematically, first order shear deformation theory (FSDT) is applied and using energy procedure, the governing equations can be derived. With respect to Rayleigh-Ritz procedure as well as Newton-Raphson iterative scheme, the motion equations are solved and therefore, post-buckling behavior of structure will be tracked. Diverse parameters as well as their reactions on post-buckling paths focusing cut out measurement, CNT\'s volume fraction and agglomeration, dimension of plate and an elastic foundation are investigated. It is revealed that presence of a square cut out can affect negatively post-buckling behavior of structure. Moreover, adding nanocompsits in the matrix leads to enhancement of post-buckling response of system. | ||
| Key Words | ||
| post-buckling; rectangular cut out plate; FSDT; Newton-Raphson iterative technique; nanocomposite | ||
| Address | ||
| Mohsen Motezaker: School of Railway Engineering, Iran University of Science and Technology, Tehran, Iran Arameh Eyvazian: Mechanical and Industrial Engineering Department, College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar | ||