Free vibration analysis of five-layered composite sandwich plates with two-layered viscoelastic cores
| Autor: | Yanchun Zhai, Sen Liang, Yan Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Field (physics) business.industry Loss factor Shear deformation theory Composite number Equations of motion 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Viscoelasticity Physics::Fluid Dynamics Vibration 020303 mechanical engineering & transports 0203 mechanical engineering System parameters Ceramics and Composites 0210 nano-technology business Civil and Structural Engineering |
| Zdroj: | Composite Structures. 200:346-357 |
| ISSN: | 0263-8223 |
| DOI: | 10.1016/j.compstruct.2018.05.082 |
| Popis: | This paper deals with the free vibration analysis of two kinds of five-layered composite sandwich plates with two-layered viscoelastic cores based on the first-order shear deformation theory for the first time. To fulfill this purposes, first, the Hamilton’s principle is employed to derive the equations of motion that govern the free vibrations of the sandwich plates, and solved by employing the method of the closed-form Navier method. Then, the present solutions are compared with those available in the previous literature to confirm their validity. Next, the variations of frequency and loss factor with system parameters are evaluated and presented graphically. Owing to considering the effect of rotary inertias and shear deformation, thin-to-moderately thick shells can be analyzed. New results for free vibration analysis of five-layered composite sandwich plates with two-layered viscoelastic cores are also presented for the first time and they may be served as benchmark for researchers in this field. |
| Databáze: | OpenAIRE |
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