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   Articles with "rayleigh waves" as a keyword



Significant Effects of Shallow Seismic and Stress Properties on Phase Velocities of Rayleigh Waves Up to 20 s

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recommendations! Published in 2018 at "Pure and Applied Geophysics"

DOI: 10.1007/s00024-018-2075-7

Abstract: Seismic data are increasingly used to monitor subsurface velocity changes associated with tectonic and environmental processes that occur in different depth sections. To clarify the differences between effects associated with shallow and deep changes of… read more here.

Keywords: rayleigh waves; velocity; significant effects; effects shallow ... See more keywords

Rayleigh waves propagation in anisotropic layer superimposed a monoclinic medium

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recommendations! Published in 2019 at "Indian Journal of Physics"

DOI: 10.1007/s12648-019-01666-6

Abstract: In this paper, we have discussed the impact of density of the monoclinic material with height on Rayleigh wave’s propagations in anisotropic layer over a monoclinic half space. Two medium layers are being considered in… read more here.

Keywords: medium; rayleigh waves; layer; waves propagation ... See more keywords

Shallow microearthquakes near Chongqing, China triggered by the Rayleigh waves of the 2015 M7.8 Gorkha, Nepal earthquake

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recommendations! Published in 2017 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2017.09.024

Abstract: Abstract We present a case of remotely triggered seismicity in Southwest China by the 2015/04/25 M7.8 Gorkha, Nepal earthquake. A local magnitude M L 3.8 event occurred near the Qijiang district south of Chongqing city… read more here.

Keywords: gorkha; mainshock; rayleigh waves; 2015 gorkha ... See more keywords

Experimental study on a Mach cone and trailing Rayleigh waves in a stress wave chasing running crack problem

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recommendations! Published in 2019 at "Theoretical and Applied Fracture Mechanics"

DOI: 10.1016/j.tafmec.2019.102371

Abstract: Abstract This paper focuses on a blast-induced Mach cone followed by trailing Rayleigh waves during blast stress waves chasing a running crack in an epoxy plate, using the photoelasticity method and high-speed photography. A Mach… read more here.

Keywords: trailing rayleigh; mach cone; rayleigh waves; running crack ... See more keywords

Nonlinear interaction of Rayleigh waves in isotropic materials: Numerical and experimental investigation.

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recommendations! Published in 2022 at "Ultrasonics"

DOI: 10.1016/j.ultras.2021.106664

Abstract: Surface treatment intensity monitoring is still an open and challenging nondestructive testing problem. For the estimation of residual stress with ultrasonic measurements, local linear and nonlinear elastic constants are needed as input. In this paper,… read more here.

Keywords: waves isotropic; rayleigh waves; nonlinear elastic; surface ... See more keywords

Laser-generated Rayleigh wave for width gauging of subsurface lateral rectangular defects

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recommendations! Published in 2018 at "Journal of Applied Physics"

DOI: 10.1063/1.5028207

Abstract: In this study, the widths of subsurface lateral rectangular defects were successfully gauged using laser-generated Rayleigh waves. Finite element analysis was used to simulate the interaction between Rayleigh waves and subsurface defects. The results of… read more here.

Keywords: rayleigh waves; lateral rectangular; generated rayleigh; rectangular defects ... See more keywords

Stroh analysis of Rayleigh waves in anisotropic thermoelastic medium

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recommendations! Published in 2018 at "Journal of Thermal Stresses"

DOI: 10.1080/01495739.2018.1425940

Abstract: ABSTRACT The present article is concerned with the Stroh analysis of Rayleigh surface wave propagation in anisotropic homogeneous thermoelastic medium. The problem is considered in the context of three-phase-lag model of generalized thermoelasticity. The secular… read more here.

Keywords: thermoelastic medium; rayleigh waves; analysis; analysis rayleigh ... See more keywords

Formulas for the H/V ratio (ellipticity) of Rayleigh waves in orthotropic elastic half-spaces

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recommendations! Published in 2019 at "Waves in Random and Complex Media"

DOI: 10.1080/17455030.2018.1470702

Abstract: ABSTRACT This paper concerns the propagation of Rayleigh waves in compressible and incompressible orthotropic elastic half-spaces. The main aim of the paper is to derive formulas for the H/V ratio (ellipticity) of Rayleigh waves. First,… read more here.

Keywords: rayleigh waves; elastic half; formulas ratio; orthotropic elastic ... See more keywords

A study of the lateral heterogeneity with the ellipticity of Rayleigh waves derived from microtremors

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recommendations! Published in 2021 at "Geophysical Journal International"

DOI: 10.1093/gji/ggab075

Abstract: We examine the potential of frequency-dependent Rayleigh wave ellipticity, derived from microtremors, for the investigation of heterogeneous subsurface structure. Based on numerical simulation, we analyse the effects of interference waves in microtremors, primarily the various… read more here.

Keywords: ellipticity; propagation; rayleigh waves; derived microtremors ... See more keywords

New robust observables on Rayleigh waves affected by an underground cavity: from numerical to experimental modelling

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recommendations! Published in 2019 at "Geophysical Journal International"

DOI: 10.1093/gji/ggz256

Abstract: The investigation and monitoring of shallow hazards due to the presence of underground cavities remain a challenge for geophysical approaches. Thus, seismic surface waves have been tested in several recent research projects in order to… read more here.

Keywords: numerical experimental; rayleigh waves; cavity; robust observables ... See more keywords

Nonequal Spacing Interval Meander-Line-Coil EMAT for Signal Amplitude Enhancement of Rayleigh Wave

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recommendations! Published in 2024 at "IEEE Sensors Journal"

DOI: 10.1109/jsen.2024.3427417

Abstract: As a type of nondestructive testing transducer, electromagnetic acoustic transducers (EMATs) are widely applied in industries for evaluation and detection of metals. To improve the poor conversion efficiency of Rayleigh wave EMATs, a new design… read more here.

Keywords: rayleigh waves; new emat; amplitude; rayleigh wave ... See more keywords