Techno Press
Techno Press

Structural Engineering and Mechanics   Volume 51, Number 1, July10 2014, pages 111-130
Free vibration analysis of laminated composite beam under room and high temperatures
Yusuf Cunedioglu and Bertan Beylergil

Abstract     [Full Text]
    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\'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.
Key Words
    layered structures; cut-out; natural frequencies; finite element analysis
Yusuf Cunedioglu : Department of Mechanical Engineering, Faculty of Engineering, Nigde University, 51245 Nigde, Turkey
Bertan Beylergil : Department of Mechanical Engineering, Faculty of Engineering, Izmir Institute of Technology,
Gulbahce Campus, 35437 Urla, Izmir, Turkey

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