Significant Effects of Shallow Seismic and Stress Properties on Phase Velocities of Rayleigh Waves Up to 20 s
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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.
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Interrogating the health condition of rails using the narrowband Rayleigh waves emitted by an innovative design of non-contact laser transduction system
Sign Up to like & getrecommendations! Published in 2020 at "Structural Health Monitoring"
DOI: 10.1177/1475921720967600
Abstract: The article reports an innovative optical system that is designed to interrogate the health condition of macroscopically intact rail specimens by measuring its inherent nonlinearity using the narrowband Rayleigh waves. A line-arrayed pattern is developed… read more here.
Keywords: system; narrowband rayleigh; rayleigh waves; health condition ... See more keywords