Vibrations of Multi-Layer Beam with Nanocomposite Face Sheets Reinforced with Graphene Platelets and Porous Core
- سال انتشار: 1402
- محل انتشار: فصلنامه مکانیک جامد، دوره: 15، شماره: 3
- کد COI اختصاصی: JR_JSMA-15-3_002
- زبان مقاله: انگلیسی
- تعداد مشاهده: 87
نویسندگان
Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran
Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, Iran
Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran----- Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran
Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran
چکیده
The current article investigates the free vibrations of a three-layer beam. The middle layer of this structure is selected from porous material. For modeling the porous layer, linear pro-elasticity relationships are applied, while Young's modulus and its density vary along the thickness. The upper and lower layers of the structure are reinforced with graphene nanoplates and can take different configurations as Parabolic, linear, and uniform. In this study, with the help of Halpin-Tsai modified theory, equivalent composite coefficients will be extracted. The equations of motion in three layers are derived with the help of third order shear theory, energy method and Hamilton's Principle. Among the significant results of this article, we can mention the effect of amplifiers in improving the vibration behavior of the beam, the effect of pore pressure and volume fraction of reinforcement on the frequency of vibrations. The results of this research can be applied in marine, aerospace, and civil industries.کلیدواژه ها
Vibration, Three-layer beam, Graphene nanoplatelets reinforced composites, Porous materialsاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.