Results 211 to 220 of about 28,811 (266)

Speed of stress wave propagation in lung

Journal of Applied Physiology, 1986
The speed of stress waves in the lung parenchyma was investigated to understand why, among all internal organs, the lung is the most easily injured when an animal is subjected to an impact loading. The speed of the sound is much less in the lung than that in other organs.
R T, Yen, Y C, Fung, H H, Ho, G R, Buttermann, G, Butterman   +4 more
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Stress Wave Propagation in Rods and Beams

1958
Publisher Summary The problem of the response of structures to dynamic loading is of great importance in a wide variety of technical applications. The loading of a structure can be classified broadly from the viewpoint of time variations. The dynamic loads themselves may be of widely differing kinds depending on the total duration of the pulse, the ...
Abramson, H. N., Plass, H. J., Ripperger, E. A.   +2 more
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Propagation of stress waves in inflated sheep lungs

Journal of Applied Physiology, 1989
If the lung is an elastic continuum, both longitudinal and transverse stress waves should be propagated in the medium with distinct velocities. In five isolated sheep lungs, we investigated the propagation of stress waves. The lungs were degassed and then inflated to a constant transpulmonary pressure (Ptp).
M, Jahed, S J, Lai-Fook, P K, Bhagat, S S, Kraman   +3 more
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Propagation of Stress Waves in Metals

1983
The application of an external force to a body is, by definition a dynamic process. However, when the rate of change of the applied forces is low, one can consider the process of deformation as a sequence of steps in which the body can be considered in static equilibrium.
M. A. Meyers, L. E. Murr
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Effect of initial stresses on the wave propagation in arteries

Journal of Mathematical Biology, 1983
A theoretical analysis for the problem of wave propagation in arteries is presented. Blood is treated as a Newtonian, viscous incompressible fluid. On the basis of information derived from experimental investigations on the mechanical properties of wall tissues, the arterial wall is considered to be nonlinearly viscoelastic and orthotropic.
Misra, J. C., Choudhury, K. Roy
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Propagation of transverse waves in a bilayer with initial stress

Soviet Applied Mechanics, 1986
In the present paper we consider the propagation of transverse waves in a bilayer subjected to finite, static, uniform deformations. It is assumed that in the natural (undeformed) state the layer is isotropic. The dispersion relations are derived for SH waves and Love waves for a body with an arbitrary potential. Numerical results are presented for the
Makhort, F. G., Karataev, Zh.
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Propagation of Stress Waves in Liquids

Nature, 1964
THE underlying assumption implicit in work concerned with the propagation of stress waves in liquids is that any pressure disturbance originating at some point in the liquid travels unchanged in form with a velocity c = √(dp/dρ), which is independent of the density.
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Numerical methods for nonlinear stress wave propagation

Proceedings of the SIGNUM meeting on Software for partial differential equations -, 1975
The partial differential equations characterizing stress wave propagation problems include conservation of volume, mass, momentum, and energy plus the constitutive relations for the materials involved. Generally these constitutive relations are nonlinear and numerical methods are required for solutions in various coordinate systems and spatial ...
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The effect of interfacial stress on the propagation of stoneley waves

Journal of Sound and Vibration, 1977
Abstract Surface waves centred on the interface between two homogeneous linearly-elastic half-spaces which remain in non-slipping contact have been extensively investigated. Here, for isotropic half-spaces, account is taken of interfacial elasticity, inertia and residual stress which may originate in a departure from material homogeneity of either ...
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Propagation of stress waves in viscoelastic media

Polymer, 1978
Abstract A new method for the determination of the characteristic parameters of the stress wave propagation, such as attenuation coefficient, wave velocity, Young's modulus and the viscosity coefficient, at various frequencies in viscoelastic rods is presented.
P.S. Theocaris, N. Papadopoulou
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