ایران مقاله

 

مقاله Free vibration analysis of functionally graded nanocomposite beams reinforced by randomly oriented carbon nanotube تحت word دارای 4 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

فایل ورد مقاله Free vibration analysis of functionally graded nanocomposite beams reinforced by randomly oriented carbon nanotube تحت word کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه و مراکز دولتی می باشد.

این پروژه توسط مرکز مرکز پروژه های دانشجویی آماده و تنظیم شده است

توجه : در صورت  مشاهده  بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل ورد می باشد و در فایل اصلی مقاله Free vibration analysis of functionally graded nanocomposite beams reinforced by randomly oriented carbon nanotube تحت word ،به هیچ وجه بهم ریختگی وجود ندارد

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بخشی از متن مقاله Free vibration analysis of functionally graded nanocomposite beams reinforced by randomly oriented carbon nanotube تحت word :

سال انتشار: 1391
محل انتشار: بیستمین کنفرانس سالانه مهندسی مکانیک
تعداد صفحات: 4
نویسنده(ها):
Mahmood Heshmati – Mech. Eng. Department, Razi University, Kermanshah / Iran
Mohammad Hossein Yas – Mech. Eng. Department, Razi University, Kermanshah

چکیده:

This work deals with a study of the vibrational properties of functionally graded nanocomposite beams reinforced by randomly oriented straight single-walled carbon nanotubes (SWCNTs). The Eshelby–Mori– Tanaka approach based on an equivalent fiber is used to investigate the material properties of the beam. An embedded carbon nanotube in a polymer matrix and it s surrounding inter-phase is replaced with an equivalent fiber for predict ing the mechanical properties of the carbon nanotube/polymer composite. The system of equations of motion is derived by using Hamilton’s principle under the assumptions of the Timoshenko beam theory. The finite element method is employed to discretize the model and obtain a numerical approximation of the motion equation. Numerical results are presented in both tabular and graphical forms to figure out the effects of various material d istributions, shear deformation and boundary conditions on the dynamic characteristics of the beam. The results showthat the above mentioned effects play very important role on the free vibration of the beam.

 

 

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