Damage evaluation based on a wave energy flow map using multiple PZT sensors
Liu, Yaolu, Hu, Ning, Xu, Hong, Yuan, Weifeng, Yan, Cheng, Li, Yuan, Goda, Riu, Alamusi, Alamusi, Qiu, Jinhao, Ning, Huiming, & Wu, Liangke (2014) Damage evaluation based on a wave energy flow map using multiple PZT sensors. Sensors, 14(2), pp. 1902-1917.
A new wave energy flow (WEF) map concept was proposed in this work. Based on it, an improved technique incorporating the laser scanning method and Betti’s reciprocal theorem was developed to evaluate the shape and size of damage as well as to realize visualization of wave propagation. In this technique, a simple signal processing algorithm was proposed to construct the WEF map when waves propagate through an inspection region, and multiple lead zirconate titanate (PZT) sensors were employed to improve inspection reliability. Various damages in aluminum and carbon fiber reinforced plastic laminated plates were experimentally and numerically evaluated to validate this technique. The results show that it can effectively evaluate the shape and size of damage from wave field variations around the damage in the WEF map.
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|Item Type:||Journal Article|
|Keywords:||Nondestructive inspection, Ultrasonic waves, Wave energy flow, Signal processing, Visualization technique|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Composite and Hybrid Materials (091202)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Functional Materials (091205)
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 by the authors|
|Copyright Statement:||licensee MDPI, Basel, Switzerland. This article is an open access article
distributed under the terms and conditions of the Creative Commons Attribution license
|Deposited On:||28 Mar 2014 04:30|
|Last Modified:||30 Jun 2015 17:05|
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