Fundamentally, plastics are viscoelastic; they behave both like an

elastic solid and a viscous fluid.

This extends to a piezoelectric quasicrystalline medium the traditional notion of a screw dislocation in a linear solely

elastic solid material by the introduction of the concept of an extended Burgers vector that has discontinuities in the components, [u.sub.z] and [w.sub.z], of the phonon and phason displacements and [phi], the electric potential, of magnitudes b,d, and [b.sub.4], respectively, across a slip plane.

The effect of tail void grouting pressure on the surrounding soil is simplified as an expansion problem of the cylindrical cavity in semi-infinite

elastic solid. Then, a formula without complex integrals is deduced by using the virtual image technique and Fourier transform solutions.

In [12], the author studied dilatant flows by means of a single, nonpropagating elliptical crack containing a wetting and a nonwetting fluids and embedded in a linearly

elastic solid. For this simple geometry it was shown that the onset of dilatant two-phase flow depends on a dimensionless parameter, and analytic solutions were obtained for some physical properties like crack aperture, capillary pressure, and permeabilities.

Considering a representative

elastic solid cube with spheroidal microvoids and circular microcracks, see Figure 3.

Lamb, "On the propagation of tremors over the surface of an

elastic solid," Philosophical Transactions of the Royal Society of London A, vol.

The ETV C16 and ETV C20 electric sit-down moving mast reach trucks--with super

elastic solid pneumatic tires for indoor and outdoor use--now reach lift heights up to 24 feet, transport loads of up to 4,400 pounds and work in aisles as narrow as 9 feet.

(2) of the

elastic solid are described in the tensor form as follows:

Li and Chudnovsky 112] presented an energy analysis of an

elastic solid with a crack which penetrates an clastic inclusion using finite element method.

What we've learned is that in some materials--but we think all materials--even at temperatures well below the transition where the materials acts like a glassy

elastic solid, the surface doesn't, he explains.

[21] discussed reflection and transmission characteristics of coupled wave through micropolar

elastic solid interlayer in micropolar fluid.

In this paper, we will consider the problem of the wave propagation in an

elastic solid irradiated over a large area by CW or pulsed lasers.