Complex‐Amplitude Programmable Versatile Metasurface Platform Driven by Guided Wave
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Science"
DOI: 10.1002/advs.202309873
Abstract: Metasurfaces have shown unparalleled controllability of electromagnetic (EM) waves. However, most of the metasurfaces need external spatial feeding sources, which renders practical implementation quite challenging. Here, a low‐profile programmable metasurface with 0.05λ0 thickness driven by… read more here.
Keywords: complex amplitude; driven guided; wave; amplitude programmable ... See more keywords
On guided wave propagation in fully clamped porous functionally graded nanoplates
Sign Up to like & getrecommendations! Published in 2018 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2017.12.011
Abstract: Abstract The study on bulk waves in nanoplates has been done for several times in recent years, but guided waves have not been investigated yet. This paper is focused on the size-dependent guided wave propagation… read more here.
Keywords: porous functionally; functionally graded; wave propagation; fully clamped ... See more keywords
Influences of anisotropic fiber-reinforced composite media properties on fundamental guided wave mode behavior: A Legendre polynomial approach
Sign Up to like & getrecommendations! Published in 2018 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2018.04.041
Abstract: Abstract The guided wave technique has been widely used for evaluating different structures. Recently, these acoustic waves have been implemented in non-destructive testing (NDT). Accordingly, these waves make up a set of motivated means for… read more here.
Keywords: composite media; polynomial approach; anisotropic fiber; legendre polynomial ... See more keywords
Rapid guided wave inspection of complex stiffened composite structural components using non-contact air-coupled ultrasound
Sign Up to like & getrecommendations! Published in 2018 at "Composite Structures"
DOI: 10.1016/j.compstruct.2018.08.024
Abstract: Abstract This article demonstrates a rapid, fully non-contact inspection technique for a full-scale complex composite structural component using air-coupled ultrasonic guided waves. The presence of different features such as stiffeners, stringers and geometric variations in… read more here.
Keywords: air coupled; composite structural; guided wave; inspection ... See more keywords
Detection and monitoring of delamination in composite laminates using ultrasonic guided wave
Sign Up to like & getrecommendations! Published in 2019 at "Composite Structures"
DOI: 10.1016/j.compstruct.2019.111161
Abstract: Abstract In is work, the delamination of composite double cantilever beams (DCBs) was detected and monitored using ultrasonic guided wave. The composite DCBs were prepared, and the experimental platform for damage detection based on ultrasonic… read more here.
Keywords: delamination composite; guided wave; delamination; harmonics ... See more keywords
Transient ultrasonic guided wave simulation in layered composite structures using a hybrid wave and finite element scheme
Sign Up to like & getrecommendations! Published in 2020 at "Composite Structures"
DOI: 10.1016/j.compstruct.2020.112376
Abstract: Abstract A guided wave simulation method for layered composites based on the wave and finite element scheme is presented. An approach for calculating complex displacement fields such as those generated from piezoelectric transducers is developed.… read more here.
Keywords: element scheme; finite element; guided wave; wave simulation ... See more keywords
Crack-induced guided wave motion and modal excitability in plates using elastodynamic reciprocity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115287
Abstract: Abstract This paper presents solutions and comparisons for guided wave motion (Lamb and shear horizontal) due to tensile and shear cracks in an isotropic plate using elastodynamic reciprocity. Cracks are treated as point sources, which… read more here.
Keywords: motion; wave motion; excitability; guided wave ... See more keywords
Nonlinear guided wave mixing in pipes for detection of material nonlinearity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115541
Abstract: Abstract Pipes have multiple applications in daily life and they are subjected to different types of defects. Nonlinear guided wave has attracted significant attention in detecting microstructural change at early stage of material deterioration. Extensive… read more here.
Keywords: wave mixing; guided wave; detection; material nonlinearity ... See more keywords
Design of a remote and integrated Sagnac interferometer that can generate narrowband guided wave through the use of laser and effective optics to detect defects occurred in plates
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2019.105923
Abstract: Abstract To inspect the integrity of specimens that are moving or no space available to mount sensors on their surfaces, laser generated guided wave (GW) becomes the only feasible option. However, conventional GW generated by… read more here.
Keywords: narrowband; integrated sagnac; optics; sagnac interferometer ... See more keywords
Estimation of rail properties using semi-analytical finite element models and guided wave ultrasound measurements.
Sign Up to like & getrecommendations! Published in 2019 at "Ultrasonics"
DOI: 10.1016/j.ultras.2018.12.015
Abstract: Guided wave based monitoring systems require accurate knowledge of mode propagation characteristics such as wavenumber and group velocity dispersion curves. These characteristics may be computed numerically for a rail provided that the material and geometric… read more here.
Keywords: semi analytical; rail; rail properties; guided wave ... See more keywords
Guided wave-based identification of multiple cracks in beams using a Bayesian approach
Sign Up to like & getrecommendations! Published in 2017 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2016.07.013
Abstract: Abstract A guided wave damage identification method using a model-based approach is proposed to identify multiple cracks in beam-like structures. The guided wave propagation is simulated using spectral finite element method and a crack element… read more here.
Keywords: multiple cracks; method; approach; identification ... See more keywords