Elastic Instability Induced Mechano-Responsive Luminescence for Super-Flexible Strain Sensing

Wang, Cong, Wang, Ding, Kozhevnikov, Valery, Xu, Ben and Li, Yifan (2017) Elastic Instability Induced Mechano-Responsive Luminescence for Super-Flexible Strain Sensing. In: IEEE SENSORS 2017, 30th October - 1st November 2017, Glasgow.


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This paper reports a novel sensing strategy by employing elastic instability as a key mechanism to achieve super flexible (up to 60%) strain sensing. Inspired by Mechano- Responsive Luminescence (MRL) phenomenon, we have demonstrated this optical strain sensing strategy by employing PDMS based functional luminescence composites multi-thin- layer structure, where fluorescent pattern signal was generated at designed strain values. Line-shaped fluorescent patterns were switched ON and OFF by elastic instabilities (e.g. wrinkling, creasing) on micro-structural soft surfaces during compressive deformation. This has extended the current understanding of large strain sensing where creating electrical connection is challenged by the metal fracture and delamination. The control of switching strain values by micro-structural geometry design has been demonstrated and discussed.

Item Type: Conference or Workshop Item (Paper)
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
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Depositing User: Cong Wang
Date Deposited: 27 Nov 2017 10:04
Last Modified: 13 Dec 2017 20:41
URI: http://nrl.northumbria.ac.uk/id/eprint/32643

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