Effects of Fiber Orientation on Out-of-plane and In-plane Natural Frequencies of Angle-ply Laminated Composite Arches


Cevik M.

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, vol.28, no.1, pp.59-71, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 1
  • Publication Date: 2009
  • Doi Number: 10.1177/0731684407083003
  • Journal Name: JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.59-71
  • Keywords: laminated composite arch, angle-ply, natural frequency, FREE-VIBRATION ANALYSIS, ROTARY INERTIA, SHEAR DEFORMATION, CIRCULAR ARCHES, BEAMS, CURVATURE
  • Dokuz Eylül University Affiliated: No

Abstract

Variation of natural frequencies of in-plane and out-of-plane vibrations of 4-layer angle-ply composite arch with respect to fiber angle is investigated by the finite element method. The arch has clamped-clamped boundary conditions. It is concluded that the fiber angle is particularly important for in-plane vibrations. For any certain value of radius/length ratio of the arch, the natural frequency can be either increased or decreased with respect to fiber angle; therefore, angle-ply lamination can be preferable to cross-ply lamination. On the other hand, the effect of fiber angle on the out-of-plane frequencies can be used as an advantage in the design of laminated composite arches.