On the influence of initial strains in layers on the propagation of torsional waves in a hollow sandwich cylinder (soft core and stiff face layers)


Akbarov S. , KEPCELER T. , Egilmez M. M.

MECHANICS OF COMPOSITE MATERIALS, cilt.49, ss.297-304, 2013 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 49 Konu: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s11029-013-9346-2
  • Dergi Adı: MECHANICS OF COMPOSITE MATERIALS
  • Sayfa Sayısı: ss.297-304

Özet

Within the scope of a piecewise homogeneous body model, with the use of the three-dimensional linearized theory of elastic waves in prestrained bodies, the effect of initial strains in layers on the dispersion of torsional waves in a hollow sandwich cylinder is studied. Two cases are considered: in Case 1, it is assumed that initial strains exist in only face layers; in Case 2, initial strains occur in all layers of the cylinder. The elasticity relations for layer materials of the cylinder are given through a harmonic potential. A dispersion equation is derived, and an analytical expression is obtained for the limit values of wave propagation speed for low wave numbers. Numerical results are presented and discussed.