3-D Printed Strain Sensor for Structural Health Monitoring

Munasinghe, N; Woods, M; Miles, L; Paul, G

3-D Printed Strain Sensor for Structural Health Monitoring

Munasinghe, N

Woods, M Miles, L Paul, G

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Publisher:: IEEE
Publication Type:: Conference Proceeding
Citation:: IEEE International Conference on Cybernetics and Intelligent Systems (CIS) and the IEEE International Conference on Robotics, Automation and Mechatronics (RAM), 2020
Issue Date:: 2020

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Field	Value	Language
dc.contributor.author	Munasinghe, N https://orcid.org/0000-0002-2209-7371	en_US
dc.contributor.author	Woods, M	en_US
dc.contributor.author	Miles, L	en_US
dc.contributor.author	Paul, G https://orcid.org/0000-0002-3478-0020	en_US
dc.date	2019-11-18	en_US
dc.date.available	2019-09-01	en_US
dc.date.issued	2020	en_US
dc.identifier.citation	IEEE International Conference on Cybernetics and Intelligent Systems (CIS) and the IEEE International Conference on Robotics, Automation and Mechatronics (RAM), 2020	en_US
dc.identifier.uri	http://hdl.handle.net/10453/136992
dc.description.abstract	Additive manufacturing, or 3D printing, is evolving from a technology that can only aid rapid prototyping, to one that can be used to directly manufacture large-scale, real-world equipment. Gravity Separation Spirals (GSS) are vital to the mining industry for separating mineral-rich slurry into its different density components. In order to overcome inherent drawbacks of the traditional mould base manufacturing methods, including significant tooling costs, limited customisation and worker exposure to hazardous materials, a 3D printer is under development to directly print spirals. By embedding small Internet of Things (IoT) sensors inside the GSS, it is possible to remotely determine the operation conditions, predict faults, and use collected data to optimise production output. This work presents a 3D printed strain sensor, which can be directly printed into the GSS. This approach uses a carbon-based conductive filament to print a strain gauge on top of a Polylactic Acid (PLA) base material. Printed sensors have been tested using an Instron E10000 testing machine with an optical extensometer to improve accuracy. Testing was conducted by both loading and unloading conditions to understand the effect of hysteresis. Test results show a near-linear relationship between strain and measured resistance, and show a 6.05% increase in resistance after the test, which indicates minor hysteresis. Moreover, the impact of viscoelastic behaviour is identified, where the resistance response lags the strain. Results from both conductive and non-conductive material show the impact of the conductive carbon upon the tensile strength, which will help to inform future decisions about sensor placement.	en_US
dc.publisher	IEEE	en_US
dc.relation.ispartof	IEEE International Conference on Cybernetics and Intelligent Systems (CIS) and the IEEE International Conference on Robotics, Automation and Mechatronics (RAM)	en_US
dc.rights	© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.title	3-D Printed Strain Sensor for Structural Health Monitoring	en_US
dc.type	Conference Proceeding
utslib.location	Piscataway, USA	en_US
utslib.location.activity	Bangkok	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CAS - Centre for Autonomous Systems
utslib.copyright.status	open_access	*
pubs.consider-herdc	true	en_US
utslib.copyright.embargo	2021-11-20T00:00:00+1100
pubs.finish-date	2019-11-20	en_US
pubs.place-of-publication	Piscataway, USA	en_US
pubs.publication-status	Published	en_US
pubs.start-date	2019-11-18	en_US

Abstract:

Additive manufacturing, or 3D printing, is evolving from a technology that can only aid rapid prototyping, to one that can be used to directly manufacture large-scale, real-world equipment. Gravity Separation Spirals (GSS) are vital to the mining industry for separating mineral-rich slurry into its different density components. In order to overcome inherent drawbacks of the traditional mould base manufacturing methods, including significant tooling costs, limited customisation and worker exposure to hazardous materials, a 3D printer is under development to directly print spirals. By embedding small Internet of Things (IoT) sensors inside the GSS, it is possible to remotely determine the operation conditions, predict faults, and use collected data to optimise production output. This work presents a 3D printed strain sensor, which can be directly printed into the GSS. This approach uses a carbon-based conductive filament to print a strain gauge on top of a Polylactic Acid (PLA) base material. Printed sensors have been tested using an Instron E10000 testing machine with an optical extensometer to improve accuracy. Testing was conducted by both loading and unloading conditions to understand the effect of hysteresis. Test results show a near-linear relationship between strain and measured resistance, and show a 6.05% increase in resistance after the test, which indicates minor hysteresis. Moreover, the impact of viscoelastic behaviour is identified, where the resistance response lags the strain. Results from both conductive and non-conductive material show the impact of the conductive carbon upon the tensile strength, which will help to inform future decisions about sensor placement.

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http://hdl.handle.net/10453/136992