A 3D Printed, Constriction-Resistive Sensor for the Detection of Ultrasonic Waves

A 3D Printed, Constriction-Resistive Sensor for the Detection of Ultrasonic Waves

Saeb Mousavi, Philippe Blanloeuil, Thailammai Vinoth, David Howard, Chun H. Wang

Abstract. Ultrasonic waves, either bulk waves or guided waves, are commonly used for non-destructive evaluation, for example in structural health monitoring. Traditional sensors for detecting ultrasonic waves include metallic strain gauges and piezoelectric ceramics. Recently piezoresistive nanocomposites have emerged as a promising sensor with high sensing range. In this paper, a constriction-resistive based sensor made from a graphene reinforced PLA filament is developed using a fused deposition modelling 3D printing approach as a novel type of ultrasonic sensor for structural health monitoring purposes. The sensor is made of very low-cost and recyclable thermoplastic material, which is lightweight and can be either directly printed onto the surface of various engineering structures, or embedded into the interior of a structure via fused filament fabrication 3D printing. These characteristics make this sensor a promising candidate compared to the traditional sensors in detecting ultrasonic waves for structural health monitoring. The printed sensors can detect ultrasonic signals with frequencies around 200 kHz, with good signal-to-noise ratio and sensitivity. When deployed between two adjacent printed tracks , and exploiting a novel kissing-bond mechanism, the sensor is capable of detecting ultrasonic waves. Several confirmatory experiments were carried out on this printed sensor to validate the capability of the printed sensor for structural health monitoring.

Keywords
3D Printing, Constriction-Resistive Sensor, Ultrasound Sensor, Structural Health Monitoring

Published online 2/20/2021, 6 pages
Copyright © 2021 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Saeb Mousavi, Philippe Blanloeuil, Thailammai Vinoth, David Howard, Chun H. Wang, A 3D Printed, Constriction-Resistive Sensor for the Detection of Ultrasonic Waves, Materials Research Proceedings, Vol. 18, pp 272-277, 2021

DOI: https://doi.org/10.21741/9781644901311-33

The article was published as article 33 of the book Structural Health Monitoring

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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