Results 221 to 230 of about 28,811 (266)

The effect of surface stress on the propagation of Lamb waves

Ultrasonics, 2010
This work investigates the possibility of the propagation of Lamb waves in thin solid layers with external traction free surfaces, in the presence of surface elasticity, inertia and residual stress. It is demonstrated that such waves do exist and that their characteristics can be quite different from their classical counterparts.
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Elastic waves propagation in stressed SWCNT

CAS 2011 Proceedings (2011 International Semiconductor Conference), 2011
This paper presents the study on the behaviour of deformed singe wall carbon nanotubes associated to the conditions of mechanical treatments. We investigate the time evolution of the deformation wave, propagating along the carbon nanotube, and reflected at both clamped ends by using large atomistic models based on molecular dynamics calculation.
Gergely Kosa, Mircea Bercu, Voicu Grecu
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Wave-propagation in uniaxially-stressed elastic media

pure and applied geophysics, 1972
The propagation of waves of small amplitude in an elastic medium, with a particular form of strain-energy function, and subjected to a large homogeneous uniaxial stress, is considered in detail. The main characteristics, including speed and polarisation, of these waves in an unbounded medium are calculated numerically, and the existence and general ...
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Plane Stress Wave Propagation in Solids

Journal of Applied Physics, 1970
This paper shows that in general, plane stress waves in solids or fluids exhibit two phase velocities. One of these is associated with the stress profile of the wave and the other with the mass-velocity profile. These velocities are distinct except for isentropic simple waves, steady flow, or discontinuous fronts, As a result, the determination of time-
Richard Fowles, Roger F. Williams
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Wave Propagation in an Elastic Field With Couple Stresses

Journal of Applied Mechanics, 1972
In a linear elastic field with couple stresses, the Green’s function for an infinitely extended medium is examined and wave-propagation properties of the field are discussed by studying the analytical structure of the Green’s function. It is observed that the longitudinal wave propagation is unaltered, and that the transverse mode (VS-type) undergoes a
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Wave Propagation in a Stress-Relaxing Bar

Journal of the Engineering Mechanics Division, 1966
An analysis of shock-induced wave propagation in a circular bar of stress-relaxing material is presented. The bar is subjected to a Motionless, elastic restraint to radial motion on the radial boundary. This boundary condition corresponds to an experimental configuration recently used to study the dynamic response of granular material confined in a ...
Robert D. Stoll, Milton S. Hess
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Stress wave propagation in a rectangular bar

Mechanics of Solids, 2016
The process of propagation of nonstationary waves in a rectangular bar is studied from the viewpoint of three-dimensional elasticity. The motion arises owing to the action of normal impact forces applied at the end face of a half-infinite bar all of whose four lateral surfaces are force-free.
N. B. Rasulova, G. R. Shamilova
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Axisymmetric Stress Wave Propagation in Sand

Journal of the Soil Mechanics and Foundations Division, 1970
Experiments were conducted in which a rigid cylindrical weight was dropped onto the surface of a bed of sand. Soil stress gages and soil strain gages embedded in the sand were employed to measure the soil response to the impacting weight. These measurements were analyzed to determine the effects of inertia on the soil behavior.
Richard A. Wetzel, Eben Vey
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Radiation Stress in Propagating Elastic Waves

1982 Ultrasonics Symposium, 1982
The radiation pressure (actually stress) of a propagating elastic wave is found to depend directly on the acoustic nonlinearity parameters of the solid and the energy density of the wave. The nonlinearity parameters are dependent upon the lattice vibrational properties of the solid and are a measure of the anharmonicity of the interatomic potential ...
J.H. Cantrell, W.P. Winfree, P. Li
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Stress Wave Propagation in an RTV Rubber

Transactions of the Society of Rheology, 1976
The response of a “rubbery” polymer, Dow Corning Silastic J Mold Making Silicone Rubber, to high-amplitude, short-duration loading is studied using acoustic waves and high-amplitude stress waves. The acoustic experiments measured the phase velocity of a 1 MHz wave over a temperature range of −30°C to +65°C.
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