Damage localization in composite panel using contact and non-contact elastic wave generation

Tomasz Wandowski; Paweł Kudela; Maciej Radzieński; Damian Mindykowski; Piotr Fiborek

doi:10.1117/12.2658650

25 April 2023 Damage localization in composite panel using contact and non-contact elastic wave generation

Tomasz Wandowski, Paweł Kudela, Maciej Radzieński, Damian Mindykowski, Piotr Fiborek

Proceedings Volume 12488, Health Monitoring of Structural and Biological Systems XVII; 1248806 (2023) https://doi.org/10.1117/12.2658650
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

In this paper results of the damage assessment of composite panel using the guided wave propagation method are presented. Two approaches of elastic wave generation are investigated: (i) contact, piezoceramic transducer (PZT)-based and (ii) non-contact, air-coupled transducer (ACT)-based. Elastic wave sensing is based on scanning laser Doppler vibrometry (SLDV). Both methods of elastic wave generation are compared based on an analysis of elastic wave propagation and damage localization results. For this purpose wave irregularity mapping (WIM) algorithm was utilized. In this research square panels made of fibre reinforced polymer are investigated. Authors investigate artificial damage in the form of Teflon inserts. In this research low-cost and low-frequency (40 kHz) ACT is utilised. The use of the ACT-based wave generation together with the SLDV-based wave sensing give the possibility of realization of the full noncontact damage localization approach. Moreover, authors analysed the acoustic wave generation by the ACT and its propagation in the air using acousto-optic effect together with SLDV measurements.

Conference Presentation

Citation Download Citation

Tomasz Wandowski, Paweł Kudela, Maciej Radzieński, Damian Mindykowski, and Piotr Fiborek "Damage localization in composite panel using contact and non-contact elastic wave generation", Proc. SPIE 12488, Health Monitoring of Structural and Biological Systems XVII, 1248806 (25 April 2023); https://doi.org/10.1117/12.2658650

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