Damage identification for composite panels using PZT sensor
Nisreen N. Ali Al-Adnani, F. Mustapha
Real-time monitoring of structural integrity is an important challenge. This article presents the results of damage detection in real time for two materials: Al 6061-T6 and twill weave carbon fibre-reinforced epoxy composite. The natural frequency as a global dynamic technique was adopted and the structure was evaluated based on the change in the natural frequency. A square thin plate with simply supported edges was investigated under the effect of sinusoidal signal which was generated via mechanical vibration exciter to carry out the natural frequency of the panel. A smart sensor (piezoelectric ceramic lead zirconate titanate) bonded to the surface of the composite panel was used to capture the signals. Experiments demonstrate the effect of change in crack depth and the response of these panels. The results were measured via monitoring technique and evaluated using root mean square deviation index as statistical analysis.
Keywords
Structural Health Monitoring (SHM), Damage Identification, Twill Weave Carbon Fibre, Composites, Smart Sensor, Root Mean Square Deviation
Published online 3/16/2017, 19 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Nisreen N. Ali Al-Adnani, F. Mustapha, ‘Damage identification for composite panels using PZT sensor’, Materials Research Foundations, Vol. 13, pp 78-96, 2017
DOI: http://dx.doi.org/10.21741/9781945291296-4
The article was published as article 4 of the book Innovation in Smart Materials and Structural Health Monitoring for Composite Applications
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