International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2578

Full Length Research Paper

Effect of geometric parameters on free vibration analysis of thick fiber reinforced plastic (FRP) skew cross-ply laminate with circular cutout

V. Bala Krishna Murthy1*, K. Srividya2, M. R. S. Satyanarayana3 and G. Sambasiva Rao1
1Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Vijayawada, India. 2Department of Mechanical Engineering, P. V. P. Siddhartha Institute of Technology, Vijayawada, India. 3Department of Mechanical Engineering, GITAM Institute of Technology, GITAM University, Visakhapatnam, India.
Email: [email protected]

  •  Accepted: 22 February 2013
  •  Published: 23 February 2013

Abstract

The present investigation deals with the free vibration analysis of a thick four-layered symmetric cross-ply skew laminated composite plate with a circular cutout and clamped boundary conditions. Three dimensional finite element models (FEMs) which use the elasticity theory for the determination of stiffness matrices are modeled in ANSYS software to evaluate first five natural frequencies of the laminate. The variations of the first five natural frequencies with respect to the thickness ratio for different d/l ratios and skew angles are presented. It is observed that, the natural frequency decreases with increase in length to thickness ratio(s).

 

Key words: Fiber reinforced plastic (FRP), finite element model (FEM), skew plate, cutout, natural frequencies.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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