Journal ArticleDOI
Locating point of impact in anisotropic fiber reinforced composite plates
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TLDR
The objective function of the triangulation technique is modified further to overcome the inherent difficulties associated with multiple singularities and to maximize the efficiency of the acoustic emission data for multiple receiving sensors.About:
This article is published in Ultrasonics.The article was published on 2008-07-01. It has received 199 citations till now. The article focuses on the topics: Composite plate & Lamb waves.read more
Citations
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Journal ArticleDOI
Acoustic source localization.
TL;DR: After reviewing various techniques the paper concludes which source localization technique should be most effective for what type of structure and what the current research needs are.
Journal ArticleDOI
Acoustic source localization in anisotropic plates.
TL;DR: For the first time a technique is proposed to locate the acoustic source in large anisotropic plates with the help of only six sensors without knowing the direction dependent velocity profile in the plate.
Journal ArticleDOI
A time reversal focusing based impact imaging method and its evaluation on complex composite structures
TL;DR: In this paper, a time reversal focusing based impact imaging method for impact localization of complex composite structures is proposed, where a complex Shannon wavelet transform is adopted to extract frequency narrow-band signals of impact response signals of a PZT sensors array at a special time-frequency scale and to measure the phase velocity of the signals.
Journal ArticleDOI
Delamination detection and quantification on laminated composite structures with Lamb waves and wavenumber analysis
TL;DR: In this paper, Laminated composites are susceptible to delamination due to their weak transverse tensile and interlaminar shear strength as compared to their in-plane properties.
Journal ArticleDOI
A probabilistic framework for acoustic emission source localization in plate-like structures
TL;DR: In this paper, the authors proposed a probabilistic approach for acoustic emission (AE) source localization in isotropic plate-like structures based on an extended Kalman filter (EKF).
References
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Journal ArticleDOI
A simplex method for function minimization
John A. Nelder,R. Mead +1 more
TL;DR: A method is described for the minimization of a function of n variables, which depends on the comparison of function values at the (n 41) vertices of a general simplex, followed by the replacement of the vertex with the highest value by another point.
Journal ArticleDOI
Damage detection in composite materials using lamb wave methods
TL;DR: In this article, the authors presented an experimental and analytical survey of candidate methods for in situ damage detection of composite materials, including delamination, transverse ply cracks and through-holes.
Proceedings ArticleDOI
Lamb wave generation with piezoelectric wafer active sensors for structural health monitoring
TL;DR: In this article, the capability of embedded piezoelectric wafer active sensors (PWAS) to perform in-situ nondestructive evaluation (NDE) is explored.
Journal ArticleDOI
Source location in thin plates using cross-correlation
TL;DR: In this paper, an alternative method to first threshold crossing for acoustic emission (AE) source location is presented for wave propagation in dispersive media, the accuracy of source location can be improved by locating corresponding phase points on the transducer outputs to determine the difference in arrival times.
Related Papers (5)
Acoustic source localization in anisotropic plates.
A new algorithm for acoustic emission localization and flexural group velocity determination in anisotropic structures
Francesco Ciampa,Michele Meo +1 more