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http://dx.doi.org/10.12989/scs.2020.34.2.289

Post-buckling analysis of Mindlin Cut out-plate reinforced by FG-CNTs  

Motezaker, Mohsen (School of Railway Engineering, Iran University of Science and Technology)
Eyvazian, Arameh (Mechanical and Industrial Engineering Department, College of Engineering, Qatar University)
Publication Information
Steel and Composite Structures / v.34, no.2, 2020 , pp. 289-297 More about this Journal
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.
Keywords
post-buckling; rectangular cut out plate; FSDT; Newton-Raphson iterative technique; nanocomposite;
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