On Continuum Modelling of Wave Propagation in Layered Medium; Bending Waves

2006 ◽  
pp. 159-171
Author(s):  
K. B. Ustinov
Keyword(s):  
Wave Propagation ◽  
Layered Medium ◽  
Bending Waves ◽  
Continuum Modelling

Shear wave propagation in a periodically layered medium - an asymptotic theory

Wave Motion ◽  
1992 ◽  
Vol 16 (1) ◽  
pp. 33-55 ◽  
Author(s):  
Andrew Norris ◽  
Fadil Santosa
Keyword(s):  
Wave Propagation ◽  
Shear Wave ◽  
Asymptotic Theory ◽  
Layered Medium

Wave Propagation in a Two-Layered Medium

1964 ◽  
Vol 31 (2) ◽  
pp. 213-222 ◽  
Author(s):  
J. P. Jones
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Rayleigh Waves ◽  
Layered Medium ◽  
Elastic Wave Propagation ◽  
Flexural Wave ◽  
Stoneley Wave ◽  
Sh Waves ◽  
The Waves

Elastic wave propagation in a medium consisting of two finite layers is considered. Two types of solutions are treated. The first is a Rayleigh train of waves. It is seen that for this case, when the wavelength becomes short, the waves approach two Rayleigh waves plus a possible Stoneley wave. When the wavelength becomes large, there are two waves; i.e., a flexural wave and an axial wave. Calculations are presented for this case. The propagation of SH waves is treated, but no calculations are presented.

Transient Bending Wave Propagation in Anisotropic Plates

1998 ◽  
Vol 65 (4) ◽  
pp. 930-938 ◽  
Author(s):  
K.-E. Fa¨llstro¨m ◽  
O. Lindblom
Keyword(s):  
Experimental Data ◽  
Wave Propagation ◽  
Integral Representation ◽  
Orthotropic Plate ◽  
Representation Formula ◽  
Rotary Inertia ◽  
Anisotropic Plates ◽  
Bending Waves ◽  
Integral Representation Formula ◽  
Bending Wave

In this paper we study transient propagating bending waves. We use the equations of orthotropic plate dynamics, derived by Chow about 25 years ago, where both transverse shear and rotary inertia are included. These equations are extended to include anisotropic plates and an integral representation formula for the bending waves is derived. Chow’s model is compared with the classical Kirchoff’s model. We also investigate the influence of the rotary inertia. Comparisons with experimental data are made as well.

Transient waves in a layered anisotropic elastic medium

1985 ◽  
Vol 397 (1812) ◽  
pp. 67-85 ◽  
Keyword(s):  
Wave Propagation ◽  
General Solution ◽  
Applied Load ◽  
Layered Medium ◽  
Elastic Materials ◽  
Transient Waves ◽  
Anisotropic Elastic Medium ◽  
Unit Step ◽  
Stress Components ◽  
Anisotropic Elastic

Wave propagation in a periodically layered medium is studied in which each period consists of two layers of homogeneous anisotropic elastic materials. The layered medium occupies the half-space x ≥ 0 in which the x -axis is normal to the layers. Transient waves in the layered medium are generated by a unit step load in time applied at x = 0. A general solution that applies to any x is obtained in the form of a Laplace transform. Asymptotic solutions valid for large x are then deduced. If the applied load at x = 0 is in the direction of one of the polarization vectors for the layered medium determined here, the stress components propagate uncoupled asymptotically. For general loadings, there are three ‘heads of the pulses’, each of which is in the form of an Airy integral.

scholarly journals Wave propagation along a thin wire antenna placed in a horizontally layered medium

2010 ◽  
Author(s):  
Yingkang Wei ◽  
Bengt Holter ◽  
Ingve Simonsen ◽  
Karsten Husby ◽  
Jacob Kuhnle ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Layered Medium ◽  
Wire Antenna ◽  
Thin Wire
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