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, vol.49, no.3, pp.297-304, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 3
  • Publication Date: 2013
  • Doi Number: 10.1007/s11029-013-9346-2
  • Journal Name: MECHANICS OF COMPOSITE MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.297-304
  • Keywords: finite initial strains, wave dispersion, hollow sandwich cylinder, highly elastic material, torsional wave, MATERIAL COMPOUNDED CYLINDER, CIRCULAR-CYLINDER, DISPERSION RELATIONS
  • Yıldız Technical University Affiliated: Yes

Abstract

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.