Journal
APPLIED MATHEMATICAL MODELLING
Volume 103, Issue -, Pages 68-90Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2021.10.027
Keywords
Semi-analytical approach; Agglomerated CNT; Nano cylindrical panel; Non-uniform edge load; buckling; vibration
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An analysis of the effect of non-uniform edge loads on agglomerated carbon nanotubes reinforced nano cylindrical panels is presented using a semi analytical nonlocal elasticity model. The results show that the nonlocal size effect leads to a reduction in stiffness, resulting in decreased buckling and dynamic characteristics.
A semi analytical nonlocal elasticity model to analyze the effect of non-uniform edge loads on static stability and free vibration characteristics of agglomerated carbon nan-otubes (CNTs) reinforced nano cylindrical panels are presented. Effective material prop-erties of the agglomerated CNT reinforced composite are obtained using a two-parameter micro-mechanics model while Eringen's non-local theory is used to account the size ef-fect. Sinusoidal shear deformation theory is adopted to analyze the buckling and vibration parameters using Galerkin's approach. The accuracy of the proposed model is presented first by comparing the results in the literature. Then a comprehensive study is carried out to analyze the influence of various degrees of agglomeration (complete, partial), nature of edge load, and non-local effects on the buckling and free vibration response of CNT re-inforced nano cylindrical panel. The results revealed that non-local size effect leads to a reduction in stiffness and thus reduces buckling and dynamic characteristics. Moreover, it is observed that critical buckling load varies with type of in plane load and reduction in natural frequency is different for different in plane loading conditions. (c) 2021 Elsevier Inc. All rights reserved.
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