Structural Engineering and Mechanics

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Surface effects on vibration and buckling behavior of embedded nanoarches

  • Ebrahimi, Farzad (Mechanical Engineering Department, Faculty of Engineering, Imam Khomeini International University) ;
  • Daman, Mohsen (Mechanical Engineering Department, Faculty of Engineering, Imam Khomeini International University) ;
  • Fardshad, Ramin Ebrahimi (Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University)
  • Received : 2017.02.19
  • Accepted : 2017.05.13
  • Published : 2017.10.10
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Abstract

The present paper deals with the free vibration and buckling problem with consideration of surface properties of circular nanobeams and nanoarches. The Gurtin-Murdach theory is used for investigating the surface effects parameters including surface tension, surface density and surface elasticity. Both linear and nonlinear elastic foundation effect are considered on the circular curved nanobeam. The analytically Navier solution is employed to solve the governing equations. It is obviously detected that the natural frequencies of a curved nanobeams is substantially influenced by the elastic foundations. Besides, it is revealed that by increasing the thickness of curved nanobeam, the influence of surface properties and elastic foundations reduce to vanished, and the natural frequency and critical buckling load turns into to the corresponding classical values.

Keywords

References

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