Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors

Additive manufacturing of thermoplastic conductive polymer composites offers interesting opportunities for customizing compliant flexural sensors. The study aimed to show that additive manufacturing could be used to fabricate flexural sensors for evaluating the effect of sensor geometry on the senso...

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Main Authors: Frederik Grønborg, Tiberiu Gabriel Zsurzsan, Anders Egede Daugaard, Jon Spangenberg, David Bue Pedersen
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Additive Manufacturing Letters
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772369022000573
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author Frederik Grønborg
Tiberiu Gabriel Zsurzsan
Anders Egede Daugaard
Jon Spangenberg
David Bue Pedersen
author_facet Frederik Grønborg
Tiberiu Gabriel Zsurzsan
Anders Egede Daugaard
Jon Spangenberg
David Bue Pedersen
author_sort Frederik Grønborg
collection DOAJ
description Additive manufacturing of thermoplastic conductive polymer composites offers interesting opportunities for customizing compliant flexural sensors. The study aimed to show that additive manufacturing could be used to fabricate flexural sensors for evaluating the effect of sensor geometry on the sensor output. Prior literature has primarily focused on material optimization rather than geometrical design. The results of this paper show that the signal amplitude between geometrically different flexural sensors with the same footprint can increase ∼28 times. In addition, the bending force is found proportional to the signal amplitude. Thus, concentrating the bending to a small section increases the signal amplitude but also increases the effect of material relaxation broadening the hysteresis loop. This study highlights the importance of considering the geometrical design when fine-tuning additive manufactured flexural sensors. In future work, it is paramount to improve reproducibility, signal linearity, and investigate the effects of geometry on other sensor parameters.
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spelling doaj.art-c7e02242504d45378fc0f49db50cf0e82022-12-22T03:46:43ZengElsevierAdditive Manufacturing Letters2772-36902022-12-013100088Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensorsFrederik Grønborg0Tiberiu Gabriel Zsurzsan1Anders Egede Daugaard2Jon Spangenberg3David Bue Pedersen4Department of Civil and Mechanical Engineering, Koppels Allé, Building 404, 2800 Kgs. Lyngby, Denmark; Bjørn Thorsen A/S, Søholm Park 1, 2900 Hellerup, Denmark; Corresponding author at: Department of Civil and Mechanical Engineering, Technical University of Denmark, Kgs, Lyngby, Denmark.Department of Electrical and Photonics Engineering, Ørsteds Plads, Building 343, 2800 Kgs. Lyngby, DenmarkDepartment of Chemical and Biochemical Engineering, Søltofts Plads 228A, 2800 Kgs. Lyngby, DenmarkDepartment of Civil and Mechanical Engineering, Koppels Allé, Building 404, 2800 Kgs. Lyngby, DenmarkDepartment of Civil and Mechanical Engineering, Koppels Allé, Building 404, 2800 Kgs. Lyngby, DenmarkAdditive manufacturing of thermoplastic conductive polymer composites offers interesting opportunities for customizing compliant flexural sensors. The study aimed to show that additive manufacturing could be used to fabricate flexural sensors for evaluating the effect of sensor geometry on the sensor output. Prior literature has primarily focused on material optimization rather than geometrical design. The results of this paper show that the signal amplitude between geometrically different flexural sensors with the same footprint can increase ∼28 times. In addition, the bending force is found proportional to the signal amplitude. Thus, concentrating the bending to a small section increases the signal amplitude but also increases the effect of material relaxation broadening the hysteresis loop. This study highlights the importance of considering the geometrical design when fine-tuning additive manufactured flexural sensors. In future work, it is paramount to improve reproducibility, signal linearity, and investigate the effects of geometry on other sensor parameters.http://www.sciencedirect.com/science/article/pii/S2772369022000573Material extrusion additive manufacturingFlexural sensorCompliant mechanismConductive polymer composite
spellingShingle Frederik Grønborg
Tiberiu Gabriel Zsurzsan
Anders Egede Daugaard
Jon Spangenberg
David Bue Pedersen
Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors
Additive Manufacturing Letters
Material extrusion additive manufacturing
Flexural sensor
Compliant mechanism
Conductive polymer composite
title Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors
title_full Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors
title_fullStr Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors
title_full_unstemmed Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors
title_short Conductive compliant mechanisms: Geometric tuning of 3D printed flexural sensors
title_sort conductive compliant mechanisms geometric tuning of 3d printed flexural sensors
topic Material extrusion additive manufacturing
Flexural sensor
Compliant mechanism
Conductive polymer composite
url http://www.sciencedirect.com/science/article/pii/S2772369022000573
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AT andersegededaugaard conductivecompliantmechanismsgeometrictuningof3dprintedflexuralsensors
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