Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces [PDF]
Scientific Reports, 2017 Recent years have heralded the introduction of metasurfaces that advantageously combine the vision of sub-wavelength wave manipulation, with the design, fabrication and size advantages associated with surface excitation.
Andrea Colombi +9 more
doaj +4 more sources
Transformation seismology: composite soil lenses for steering surface elastic Rayleigh waves. [PDF]
Sci Rep, 2016 Metamaterials are artificially structured media that exibit properties beyond those usually encountered in nature. Typically they are developed for electromagnetic waves at millimetric down to nanometric scales, or for acoustics, at centimeter scales. By
Colombi A +3 more
europepmc +7 more sources
Surface Crack Monitoring by Rayleigh Waves with a Piezoelectric-Polymer-Film Ultrasonic Transducer Array [PDF]
Sensors, 2023 This paper presents a method for measuring surface cracks based on the analysis of Rayleigh waves in the frequency domain. The Rayleigh waves were detected by a Rayleigh wave receiver array made of a piezoelectric polyvinylidene fluoride (PVDF) film and ...
Xiaotian Li +8 more
doaj +2 more sources
Surface Roughness Effects on Self-Interacting and Mutually Interacting Rayleigh Waves [PDF]
Sensors, 2021 Rayleigh waves are very useful for ultrasonic nondestructive evaluation of structural and mechanical components. Nonlinear Rayleigh waves have unique sensitivity to the early stages of material degradation because material nonlinearity causes distortion ...
Chaitanya Bakre, Cliff J. Lissenden
doaj +2 more sources
Measurement of the Acoustic Non-Linearity Parameter of Materials by Exciting Reversed-Phase Rayleigh Waves in Opposite Directions [PDF]
Sensors, 2020 The acoustic non-linearity parameter of Rayleigh waves can be used to detect various defects (such as dislocation and micro-cracks) on material surfaces of thick-plate structures; however, it is generally low and likely to be masked by noise.
Bingsheng Yan +4 more
doaj +2 more sources
Rayleigh waves in isotropic microstretch thermoelastic diffusion solid half space
Latin American Journal of Solids and Structures, 2014 This paper is devoted to the study of propagation of Rayleigh waves in a homogeneous isotropic microstretch generalized thermoelastic diffusion solid half-space.
Rajneesh Kumar, Sanjeev Ahuja, S.K. Garg
doaj +2 more sources
Rayleigh wave manipulation based on phase shift between two periodic surface corrugations
Results 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
The axisymmetric Rayleigh waves in a semi-infinite elastic solid
Theoretical 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
Earthquake Research Advances, 2022 In this study, A time-domain seismic response analysis method and a calculation model of the underground structure that can realize the input of seismic P, SV and Rayleigh waves are established, based on the viscoelastic artificial boundary elements and ...
Xin Bao +4 more
doaj +1 more source
Contactless estimation of soil moisture using leaky Rayleigh waves and a fully convolutional network
Vadose Zone Journal, 2023 Soil moisture is a key factor that influences various aspects of ecosystem functioning. Measuring soil moisture without installing any objects in the soil is desirable because it allows for accurate characterizations of soil moisture while minimizing ...
Seoungmin Lee, Dong Kook Woo, Hajin Choi
doaj +1 more source