Results 11 to 20 of about 12,038 (244)

Rayleigh wave manipulation based on phase shift between two periodic surface corrugations

open access: yesResults in Physics, 2023
The propagation of Rayleigh waves along solid surfaces has attracted great attention due to its ubiquity in seismic waves, non-destructive evaluation, acoustic surface wave devices, and so on.
Qiao-Mu Zhang   +6 more
doaj   +1 more source

A review on microtremor H/V spectral ratio method

open access: yes地球与行星物理论评, 2021
The microtremor H/V spectral ratio is the ratio of the horizontal component to the vertical component of the ambient seismic noise at different frequencies, recorded at the earth surface.
Tongwei Qin   +3 more
doaj   +1 more source

Viscoelastic Rayleigh waves II [PDF]

open access: yesQuarterly of Applied Mathematics, 1978
The number of possible surface waves on a viscoelastic half-space is investigated numerically as a function of the material parameters. The results are applied to simple theoretical models of viscoelastic behavior and also to experimental data. It is concluded that two surface waves are possible on some rocks and on nearly all solid polymers.
Currie, P. K., O'Leary, P. M.
openaire   +2 more sources

Rayleigh–Taylor shock waves [PDF]

open access: yesPhysics of Fluids, 2007
Beginning from a state of hydrostatic equilibrium, in which a heavy gas rests atop a light gas in a constant gravitational field, Rayleigh–Taylor instability at the interface will launch a shock wave into the upper fluid. We have performed a series of large-eddy simulations which suggest that the rising bubbles of light fluid act like pistons ...
Olson, B J, Cook, A W
openaire   +1 more source

Shallow S-wave Velocity Profile Estimation using Surface Velocity and Microtremor HVSR with a Linear Velocity Increase Approach

open access: yesJournal of Mathematical and Fundamental Sciences, 2023
We propose a simple method for 1D S-wave velocity (Vs) profile estimation using a measured surface S-wave velocity (V1) and peak frequency of the observed microtremor horizontal-to-vertical spectral ratio (HVSR).
Andi Muhamad Pramatadie   +2 more
doaj   +1 more source

Wave propagation in nonlocal orthotropic micropolar elastic solids

open access: yesArchives of Mechanics, 2021
The presented paper is concerned with the propagation of Rayleigh waves in an orthotropic nonlocal micropolar elastic half-space. The main aim of the paper is to derive dispersion equations of Rayleigh wave as well as Stroh formalism for the orthotropic ...
D.X. Tung
doaj   +1 more source

Atoms riding Rayleigh waves

open access: yesJournal of Physics: Condensed Matter, 2010
Under special kinematic conditions helium atoms impinging upon a crystal surface can be inelastically trapped into a surface bound state and ride the created Rayleigh wave. This special case of phonon-assisted selective adsorption, leading to an atom-phonon bound state (atomic polaron), can explain previously unassigned resonant features observed in ...
BENEDEK, GIORGIO   +3 more
openaire   +3 more sources

Asymptotic Formulation for the Rayleigh Wave on a Nonlocally Elastic Half-Space

open access: yesVibration, 2023
This paper deals with the Rayleigh wave, propagating on a nonlocally elastic, linearly isotropic half-space, excited by a prescribed surface loading. The consideration develops the methodology of hyperbolic–elliptic models for Rayleigh and Rayleigh-type ...
Danila A. Prikazchikov
doaj   +1 more source

Rayleigh–bloch waves in CMUT arrays [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2014
Using the small-signal electrical equivalent circuit of a capacitive micromachined ultrasonic transducer (CMUT) cell, along with the self and mutual radiation impedances of such cells, we present a computationally efficient method to predict the frequency response of a large CMUT element or array.
Atalar, A., Köymen H., Oğuz H.
openaire   +4 more sources

Supershear Rayleigh Waves at a Soft Interface [PDF]

open access: yesPhysical Review Letters, 2013
We report on the experimental observation of waves at a liquid foam surface propagating faster than the bulk shear waves. The existence of such waves has long been debated, but the recent observation of supershear events in a geophysical context has inspired us to search for their existence in a model viscoelastic system. An optimized fast profilometry
Le Goff, Anne   +2 more
openaire   +4 more sources

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