Journal ArticleDOI
Graphical User Interface for Guided Acoustic Waves
Paolo Bocchini,Paolo Bocchini,Alessandro Marzani,Alessandro Marzani,Erasmo Viola,Erasmo Viola +5 more
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TLDR
GuWang et al. as mentioned in this paper presented GUIGUW v0.1, a graphical user interface (GUI) for the computation of stress-guided wave dispersive features, which exploits semianalytical finite-element (SAFE) formulations for the calculation of wave-propagation characteristics.Abstract:
This paper presents GUIGUW v0.1, a graphical user interface (GUI) for the computation of stress-guided wave dispersive features. The software exploits semianalytical finite-element (SAFE) formulations for the calculation of wave-propagation characteristics. The interface allows for the selection of geometrical, mechanical, and frequency-related parameters for the computation. Isotropic and anisotropic materials with linear elastic and linear viscoelastic rheological behaviors can be considered, and any waveguide cross section can be modeled. For each existing wave, the dispersive results can be represented in terms of wave number, wavelength, phase velocity, group velocity (for undamped waveguides), energy velocity, and attenuation (for damped waveguides). By simply working with the GUI, original results for guided stress waves can be obtained.read more
Citations
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Journal ArticleDOI
A numerical approach for the computation of dispersion relations for plate structures using the Scaled Boundary Finite Element Method
TL;DR: In this paper, a method is presented for the numerical computation of dispersion properties and mode shapes of guided waves in plate structures based on the Scaled Boundary Finite Element Method.
Book ChapterDOI
Modelling the Generation and Propagation of Ultrasonic Signals in Cylindrical Waveguides
Fernando Seco,Antonio Jiménez +1 more
TL;DR: In this paper, the waveguide behavior is used in a number of scientific and engineering applications: the NDE of the structural health of civil engineering elements for safety purposes, in linear displacement sensors (Seco et al., 2009) for high accuracy absolute linear position estimation, in the evaluation of material properties of metal wires, optical fibers or composites, and as fluid sensors in pipes transporting liquids.
Journal ArticleDOI
Shear horizontal wave transducers for structural health monitoring and nondestructive testing: A review.
Hongchen Miao,Faxin Li +1 more
TL;DR: In this paper, a review of the state-of-the-art SH wave transducers for structural health monitoring (SHM) and nondestructive testing (NDT) is presented.
Journal ArticleDOI
The computation of dispersion relations for three-dimensional elastic waveguides using the Scaled Boundary Finite Element Method
TL;DR: In this paper, a numerical approach for the computation of dispersion relations for three-dimensional waveguides with arbitrary cross-section is proposed, which is based on the scaled boundary finite element method (SBFEM).
Journal ArticleDOI
A dispersion compensation procedure to extend pulse-echo defects location to irregular waveguides
TL;DR: In this article, a time-frequency signal processing procedure aimed at extending pulse-echo defect detection methods based on guided waves to irregular waveguides is proposed, which returns the distance traveled by a guided wave that has propagated along a waveguide composed by segments with different dispersive properties by processing the detected echo signal.
References
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Book ChapterDOI
Disperse: a general purpose program for creating dispersion curves
TL;DR: In this article, a general-purpose program that can create dispersion curves for a very wide range of systems and then effectively communicate the information contained within those curves is presented, using the global matrix method to handle multi-layered Cartesian and cylindrical systems.
Journal ArticleDOI
A semi-analytical finite element formulation for modeling stress wave propagation in axisymmetric damped waveguides
TL;DR: In this paper, a semi-analytical finite element (SAFE) method is presented for analyzing the wave propagation in viscoelastic axisymmetric waveguides.
Journal ArticleDOI
The effect of load on guided wave propagation.
Feng Chen,Paul D. Wilcox +1 more
TL;DR: A finite element technique for modelling the dispersion characteristics of guided waves in a waveguide of arbitrary cross section subjected to axial load is presented and the results from the FE model are compared to results obtained from a simple Euler-Bernoulli beam model.
Journal ArticleDOI
Semi-analytical finite element analysis of elastic waveguides subjected to axial loads.
TL;DR: It was found that the stiffness matrix required to describe the effect of axial load is proportional to the mass matrix, which makes the extension to existing software trivial.
Journal ArticleDOI
Time–transient response for ultrasonic guided waves propagating in damped cylinders
TL;DR: In this article, an enhanced spectral finite element (SFE) formulation is proposed to calculate the time-transient response in cylindrical waveguides, in which material damping is included allowing for complex stress-strain viscoelastic constitutive relations in force of the correspondence principle.