Full wavefield method for damage detection in stiffened CFRP panel

Tomasz Wandowski; Pawel Malinowski

doi:10.1117/12.2581272

22 March 2021 Full wavefield method for damage detection in stiffened CFRP panel

Tomasz Wandowski, Pawel Malinowski

Proceedings Volume 11593, Health Monitoring of Structural and Biological Systems XV; 115930R (2021) https://doi.org/10.1117/12.2581272
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only

Abstract

In this paper results of analysis of guided wave propagation phenomenon in stiffened composite panel are presented. Panel is made of carbon fibers reinforced polymer. Presented research employs method that is based on full wavefield measurement approach where elastic wave sensing is performed in dense mesh of points covering whole surface of the panel. Elastic wave sensing process is conducted using Scanning Laser Doppler Vibrometer while as waves excitation is performed by piezoelectric transducer. Interactions of elastic waves with stiffener and artificial discontinuities are investigated. Artificial discontinuities in the forms of additional mass and impact damage are investigated. Authors investigated the influence of the reinforcing fibres orientation, problems of material damping and interaction of wave with stiffener on possibility of damage detection. The aim of proposed simple signal processing is damage detection and localization.

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Citation Download Citation

Tomasz Wandowski and Pawel Malinowski "Full wavefield method for damage detection in stiffened CFRP panel", Proc. SPIE 11593, Health Monitoring of Structural and Biological Systems XV, 115930R (22 March 2021); https://doi.org/10.1117/12.2581272

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