Stretchable strain sensors with large strain range, high sensitivity, and excellent reliability are of great interest for applications in soft robotics, wearable devices, and structure-monitoring systems. Unlike conventional template lithography-based approaches, 3D-printing can be used to fabricate complex devices in a simple and cost-effective manner. In this paper, we report 3D-printed stretchable strain sensors that embeds a flexible conductive composite material in a hyper-plastic substrate. Three commercially available conductive filaments are explored, among which the conductive thermoplastic polyurethane (ETPU) shows the highest sensitivity (gauge factor of 5), with a working strain range of 0%–20%. The ETPU strain sensor exhibits an interesting behavior where the conductivity increases with the strain. In addition, an experiment for measuring the wind speed is conducted inside a wind tunnel, where the ETPU sensor shows sensitivity to the wind speed beyond 5.6 m/s.
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ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 10–12, 2018
San Antonio, Texas, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5194-4
PROCEEDINGS PAPER
3D-Printed Stretchable Strain Sensor With Application to Wind Sensing
Mohammed Al-Rubaiai,
Mohammed Al-Rubaiai
Michigan State University, East Lansing, MI
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Ryohei Tsuruta,
Ryohei Tsuruta
Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA), Ann Arbor, MI
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Umesh Gandhi,
Umesh Gandhi
Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA), Ann Arbor, MI
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Chuan Wang,
Chuan Wang
Michigan State University, East Lansing, MI
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Xiaobo Tan
Xiaobo Tan
Michigan State University, East Lansing, MI
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Mohammed Al-Rubaiai
Michigan State University, East Lansing, MI
Ryohei Tsuruta
Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA), Ann Arbor, MI
Umesh Gandhi
Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA), Ann Arbor, MI
Chuan Wang
Michigan State University, East Lansing, MI
Xiaobo Tan
Michigan State University, East Lansing, MI
Paper No:
SMASIS2018-7945, V001T01A003; 6 pages
Published Online:
November 14, 2018
Citation
Al-Rubaiai, M, Tsuruta, R, Gandhi, U, Wang, C, & Tan, X. "3D-Printed Stretchable Strain Sensor With Application to Wind Sensing." Proceedings of the ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation. San Antonio, Texas, USA. September 10–12, 2018. V001T01A003. ASME. https://doi.org/10.1115/SMASIS2018-7945
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