Structural Engineering and Mechanics

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Free vibration analysis of laminated composite beam under room and high temperatures

  • Cunedioglu, Yusuf (Department of Mechanical Engineering, Faculty of Engineering, Nigde University) ;
  • Beylergil, Bertan (Department of Mechanical Engineering, Faculty of Engineering, Izmir Institute of Technology)
  • Received : 2012.06.07
  • Accepted : 2014.05.09
  • Published : 2014.07.10
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Abstract

The aim of this study is to investigate the effects of the beam aspect ratio(L/h), hole diameter, hole location and stacking layer sequence ($[0/45/-45/90]_s$, $[45/0/-45/90]_s$ and $[90/45/-45/0]_s$) on natural frequencies of glass/epoxy perforated beams under room and high (40, 60, 80, and $100^{\circ}C$) temperatures for the common clamped-free boundary conditions (cantilever beam). The first three out of plane bending free vibration of symmetric laminated beams is studied by Timoshenko's first order shear deformation theory. For the numerical analyses, ANSYS 13.0 software package is utilized. The results show that the hole diameter, stacking layer sequence and hole location have important effect especially on the second and third mode natural frequency values for the short beams and the high temperatures affects the natural frequency values significantly. The results are presented in tabular and graphical form.

Keywords

References

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