Results 41 to 50 of about 2,693,775 (331)

The axisymmetric Rayleigh waves in a semi-infinite elastic solid

open access: yesTheoretical and Applied Mechanics Letters, 2020
: It is well-known that Rayleigh wave, also known as surface acoustic wave (SAW), solutions in semi-infinite solids are plane waves with signatory properties like the distinct velocity and exponentially decaying deformation in the depth.
Ji Wang   +6 more
doaj   +1 more source

Theoretical Effect of Yield and Burst Height of Atmospheric Explosions on Rayleigh Wave Amplitudes [PDF]

open access: yes, 1974
Theoretical seismograms for fundamental mode Rayleigh waves were calculated for atmospheric point sources over oceanic and over continental Earth models, as recorded at an epicentral distance of 10000 km.
Flinn, E. A.   +2 more
core   +1 more source

High-temperature high-sensitivity AlN-on-SOI Lamb wave resonant strain sensor

open access: yesAIP Advances, 2018
A piezoelectric AlN-on-SOI structured MEMS Lamb wave resonator (LWR) is presented for high-temperature strain measurement. The LWR has a composite membrane of a 1 μm thick AlN film and a 30 μm thick device silicon layer.
Shaoxu Dou   +8 more
doaj   +1 more source

Lamb wave near field enhancements for surface breaking defects in plates [PDF]

open access: yes, 2012
Near field surface wave ultrasonic enhancements have previously been used to detect surface breaking defects in thick samples using Rayleigh waves. Here, we present analogous surface wave enhancements for Lamb waves propagating in plates.
Clough, A. R.   +1 more
core   +1 more source

Rayleigh-wave coupling to atmospheric compression waves* [PDF]

open access: yesBulletin of the Seismological Society of America, 1952
AbstractThe theory of dispersive Rayleigh waves coupled to atmospheric compressional waves is derived for the case of a solid surface layer. Numerical computation of phase and group velocity curves indicates that an additional branch may be introduced to the dispersion curves as a result of air coupling.
Jardetzky, Wenceslas S., 1896-1962   +1 more
openaire   +2 more sources

Fully nonlinear inversion of fundamental mode surface waves for a global crustal model [PDF]

open access: yes, 2007
We use neural networks to find 1-dimensional marginal probability density functions (pdfs) of global crustal parameters. The information content of the full posterior and prior pdfs can quantify the extent to which a parameter is constrained by the data.
A. Curtis   +21 more
core   +1 more source

Study of high-resolution analysis of Rayleigh waves on the basis of the Choi–Williams distribution

open access: yesFrontiers in Earth Science
Rayleigh wave exploration is widely used in the field of engineering investigation, which can analyze the near surface velocity structure. However, the traditional Rayleigh wave exploration data processing method can only provide the average change of ...
Min Xiang   +6 more
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   +5 more sources

Thermomagnetic effect on the propagation of Rayleigh waves in an isotropic homogeneous elastic half-space under initial stress

open access: yesCogent Engineering, 2015
Rayleigh wave propagation in an isotropic homogeneous initially stressed thermoelastic half-space under the effect of magnetic field has been studied using Green–Lindsay (GL) theory of generalized thermoelasticity.
Rajeev Ghatuary, Nilratan Chakraborty
doaj   +1 more source

Inversion of Rayleigh wave dispersion curves based on antlion optimizer

open access: yes地质科技通报, 2023
Inverting Rayleigh wave dispersion curves to obtain S-wave velocity profiles is one of the most important steps in near-surface Rayleigh wave exploration.
Yiming Wang   +2 more
doaj   +1 more source

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