The Lamb's problem for a half-space covered with the pre-stretched layer


AKBAROV S. , Emiroglu I. , TASCI F.

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, cilt.47, ss.1326-1349, 2005 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 47 Konu: 9
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.ijmecsci.2005.05.004
  • Dergi Adı: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
  • Sayfa Sayısı: ss.1326-1349

Özet

The Lamb's problem for the half-space covered with the pre-stretching layer is studied within the framework of the piecewise homogeneous body model. The three-dimensional linearized theory of elastic waves in initially stressed bodies is used. It is assumed that a time-harmonic point-located normal force acts on the free face plane of the covering layer. A numerical algorithm is also developed. Numerical results are presented for two cases of material pairs: rubber (layer) + aluminum (half-space); and aluminum (layer)+ rubber (half-space). These results involve stresses acting on the interface plane and in the covering layer. The influence of the harmonic force frequency and the pre-stretching of the covering layer on the distribution of stresses is analyzed. In particular, it is established that stresses on the interface plane are decreased as the pre-stretching is increased. (c) 2005 Elsevier Ltd. All rights reserved.