Stress analysis for a thick rectangular plate of a composite material with a spatially periodically curved structure under forced vibration


Demiriz I. , Akbarov S.

MECHANICS OF COMPOSITE MATERIALS, cilt.39, ss.235-244, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 39 Konu: 3
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1023/a:1024518110482
  • Dergi Adı: MECHANICS OF COMPOSITE MATERIALS
  • Sayfa Sayısı: ss.235-244

Özet

Natural and forced vibrations of a thick rectangular plate fabricated from a composite material with a spatially periodically curved structure are investigated with the use of exact three-dimensional equations of motion of the theory of elastic anisotropic bodies. The investigations are carried out within the framework of the continuum approach developed by Akbarov and Guz'. It is supposed that the plate is clamped at all its edges and is loaded on the upper face with uniformly distributed normal forces periodically changing with time. The influence of curving parameters on the fundamental frequency of the plate and on the distribution of the normal stress acting in the thickness direction under forced vibration is studied. The corresponding boundary-value problems are solved numerically by employing the three-dimensional FEM modeling.