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Additively manufactured sensors for SHM of composite structures

Raju, B and Kanmcherla, KB and Dakshayini, BS and Ravi, NB and Patil, R and Mahapatra, DR (2019) Additively manufactured sensors for SHM of composite structures. In: 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019, 10 - 12 September 2019, Stanford, pp. 2216-2222.

Full text not available from this repository.
Official URL: https://doi.org/10.12783/shm2019/32359


Polyvinylidene fluoride (PVDF) is a widely used material for properties such as piezoelectric sensing, good chemical resistance, high thermal stability, low acoustic impedances and flexibility. Lead zirconate titanate (PZT) is a piezoceramic with its perovskite phase having good sensitivity and high operating temperatures which has number of applications as ultrasonic transducers and piezoelectric resonators. There is much need of synergizing the sensing and actuation capabilities of both the materials and thus expanding the potential applications on lightweight composite structures with complex geometries. Fused layer deposition is one of the additive manufacturing techniques which helps in achieving the above objective. In this paper, we study the 3D printing of solvent assisted PVDF-PZT nanocomposite sensor and their integration into smart composite structures. 3D printable piezoelectric material is synthesized by the optimum dispersion of PZT nanoparticles to PVDF that is dissolved in solvent. Piezoelectric sensors are 3D printed on the fabric composite surface to study the strain effects during deformation. Electrode printing is carried out using screen printing technique. Impact tests are carried out to study the transient response of the sensors. Dynamic response of sensor is also characterized on an electrodynamic shaker. The effect of strain on the electrical impedance characteristics is studied. Overall performance indicates that these 3D printed sensors can have potential applications in SHM of composite structures for aerospace applications, IoT and robotic automation. © 2019 by DEStech Publications, Inc. All rights reserved.

Item Type: Conference Paper
Publication: Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring
Publisher: DEStech Publications Inc.
Additional Information: The copyright for this article belongs to DEStech Publications Inc.
Keywords: Acoustic impedance; Additives; Aerospace applications; Chemical stability; Composite structures; Fluorine compounds; Internet of things; Lead zirconate titanate; Life cycle; Nanocomposites; Perovskite; Piezoelectric ceramics; Piezoelectricity; Screen printing; Structural health monitoring; Structure (composition); Synthesis (chemical); Transient analysis; Ultrasonic applications; Ultrasonic transducers, Electrical impedance characteristics; High operating temperature; Lightweight composites; Manufacturing techniques; Piezoelectric resonators; Polyvinylidene fluorides; Screen printing technique; Smart-composite structures, 3D printers
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 06 Dec 2022 05:50
Last Modified: 06 Dec 2022 05:50
URI: https://eprints.iisc.ac.in/id/eprint/78262

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