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Proceedings Paper

Nonlinear damage detection and localization using a time domain approach
Author(s): S. Boccardi; D.-B. Calla; G.-P. Malfense Fierro; F. Ciampa; M. Meo
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Paper Abstract

This paper presents a damage detection and localization technique based on nonlinear elastic waves propagation in a damage composite laminate. The proposed method relies on the time of arrival estimation of the second harmonic nonlinear response obtained with second order phase symmetry analysis filtering and burst excitation. The Akaike Information Criterion approach was used to estimate the arrival times measured by six receiver transducers. Then, a combination of Newton’s method and unconstrained optimization was employed to solve a system of nonlinear equations in order to obtain the material damage coordinates. To validate this methodology, experimental tests were carried out on a damaged composite plate. The results showed that the technique allows calculating the damage position with high accuracy (maximum error ~5 mm).

Paper Details

Date Published: 22 April 2016
PDF: 7 pages
Proc. SPIE 9804, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016, 98040T (22 April 2016); doi: 10.1117/12.2219381
Show Author Affiliations
S. Boccardi, Univ. of Bath (United Kingdom)
D.-B. Calla, Univ. of Bath (United Kingdom)
G.-P. Malfense Fierro, Univ. of Bath (United Kingdom)
F. Ciampa, Univ. of Bath (United Kingdom)
M. Meo, Univ. of Bath (United Kingdom)


Published in SPIE Proceedings Vol. 9804:
Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016
Tzuyang Yu; Andrew L. Gyekenyesi; Peter J. Shull; H. Felix Wu, Editor(s)

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