| نویسندگان | علی قربانپور-حسن بابااکبرزارعی-الهام حق پرست |
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| تاریخ انتشار | ۲۰۱۶-۶-۰۱ |
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| نوع نشریه | الکترونیکی |
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| نمایه نشریه | SID |
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چکیده مقاله
In the present study, modelling and vibration analysis of Carbon nanotubes/ fiber/ polymer composite microplates are
investigated. The governing equations of the Carbon nanotubes/ fiber/ polymer composite microplates are derived
based on first order shear deformation plate theory, rather than other plate theories, due to accuracy and simplicity of
polynomial functions. The modified couple stress theory is employed because of its capability to interpret the size
effect. Halpin-Tsai model is utilized to evaluate the material properties of two-phase composite consisted of uniformly
distributed and randomly oriented Carbon nanotubes through the epoxy resin matrix. Afterwards, the structural
properties of carbon nanotubes reinforced polymer matrix, which is assumed as a new matrix, and then, reinforced
with E-Glass fiber, they are calculated by fiber micromechanics approach. Employing Hamilton’s principle, the
equations of motion are obtained and solved by Hybrid analytical numerical method. The influences of various
parameters such as the weight percentage of single-walled carbon nanotube, aspect ratio, and size effect on the
vibration characteristics of microplate are discussed in details. Results indicate that the stability of Carbon
nanotubes/fiber/polymer composite microplates can be improved by adding appropriate values of Carbon nanotubes.
In addition, increase in the frequencies is more pronounced in the case of microplates reinforced with SWCNT
compared with MWCNT. These findings can be used in design and manufacturing of marine vessels and aircrafts.