Use of trigonometric series functions in free vibration analysis of laminated composite beams

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Turan M., Kahya V.

Challenge Journal of Structural Mechanics, cilt.6, ss.61-67, 2020 (Diğer Kurumların Hakemli Dergileri)

  • Cilt numarası: 6 Konu: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.20528/cjsmec.2020.02.002
  • Dergi Adı: Challenge Journal of Structural Mechanics
  • Sayfa Sayıları: ss.61-67


In this study, free vibration analysis of layered composite beams is performed by us-ing an analytical method based on trigonometric series. Based on the first-order shear deformation beam theory, the governing equations are derived from the La-grange’s equations. Appropriate trigonometric series functions are selected to satisfy the end conditions of the beam. Navier-type solution is used to obtain natural frequencies. Natural frequencies are calculated for different end conditions and lamina stacking. It was seen that the slenderness, E11/E22 and fiber angle have a significant effect on natural frequency. The results of the study are quite compatible with the literature.