Journal ArticleDOI
Damage detection in quasi-isotropic composite bends using ultrasonic feature guided waves
TLDR
In this article, the feasibility of using ultrasonic feature guided waves (FGW) for rapid screening of typical 90° bends made of quasi-isotropic composite laminates is explored.About:
This article is published in Composites Science and Technology.The article was published on 2017-03-22. It has received 59 citations till now. The article focuses on the topics: Composite laminates.read more
Citations
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Journal ArticleDOI
Statistics-based baseline-free approach for rapid inspection of delamination in composite structures using ultrasonic guided waves
TL;DR: In this article , a baseline-free statistical approach for the identification and localization of delamination using sparse sampling and density-based spatial clustering of applications with noise (DBSCAN) technique is proposed.
Journal ArticleDOI
A stretchable and large-scale guided wave sensor network for aircraft smart skin of structural health monitoring:
TL;DR: A design and manufacturing method of a stretchable and large-scale guided wave sensor network that can be applied to both active and passive guided wave–based structural health monitoring of composite structures, including damage imaging and impact imaging is proposed.
Journal ArticleDOI
Feature guided wave inspection of bond line defects between a stiffener and a composite plate
TL;DR: In this paper, a feature guided wave (FGW) was used for rapid screening of the bond line between a stiffener and a carbon fiber reinforced polymer (CFRP) composite panel.
Journal ArticleDOI
Detection of damage in welded joints using high order feature guided ultrasonic waves
TL;DR: In this paper, the existence of high order weld-guided wave modes was revealed via the modal analysis of an unbounded welded plate at high frequencies, by using the semi-analytical finite element (SAFE) approach.
Journal Article
The interaction of Lamb waves with delaminations in composite laminates
Ningqun Guo,Peter Cawley +1 more
TL;DR: In this article, the S0 Lamb mode can propagate over distances of the order of 1 m in composite laminates and so has the potential to be used in long-range nondestructive inspection.
References
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Book
Acoustic Fields and Waves in Solids
TL;DR: In this article, the authors apply the material developed in the Volume One to various boundary value problems (reflection and refraction at plane surfaces, composite media, waveguides and resonators).
MonographDOI
The Theory of Composites
TL;DR: Some of the greatest scientists including Poisson, Faraday, Maxwell, Rayleigh, and Einstein have contributed to the theory of composite materials Mathematically, it is the study of partial differential equations with rapid oscillations in their coefficients Although extensively studied for more than a hundred years, an explosion of ideas in the last five decades has dramatically increased our understanding of the relationship between the properties of the constituent materials, the underlying microstructure of a composite, and the overall effective moduli which govern the macroscopic behavior as mentioned in this paper.
Journal ArticleDOI
Long-Wave Elastic Anisotropy Produced by Horizontal Layering
TL;DR: In this article, a horizontally layered inhomogeneous medium is considered, whose properties are constant or nearly so when averaged over some vertical height l′, and conditions on the five elastic coefficients of a homogeneous transversely isotropic medium are derived which are necessary and sufficient for the medium to be "long-wave equivalent" to a horizontally-layered inhomogenous medium.
Journal ArticleDOI
A two-dimensional Fourier transform method for the measurement of propagating multimode signals
D. N. Alleyne,Peter Cawley +1 more
TL;DR: In this article, a two-dimensional Fourier transform (2D FFT) was used to measure the amplitudes and velocities of the Lamb waves propagating in a plate, the output of the transform being presented using an isometric projection which gives a three-dimensional view of the wave-number dispersion curves.
Proceedings ArticleDOI
Modeling wave propagation in damped waveguides of arbitrary cross-section
TL;DR: In this article, a semi-analytical finite element (SAFE) method for modeling wave propagation in waveguides of arbitrary cross-section is proposed, and the dispersive solutions are obtained in terms of phase velocity, group velocity, energy velocity, attenuation and cross-sectional mode shapes.
Related Papers (5)
Feature guided wave inspection of bond line defects between a stiffener and a composite plate
Guided Lamb waves for identification of damage in composite structures: A review
Zhongqing Su,Lin Ye,Ye Lu +2 more