Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94235
Title: | An implantable, compatible and networkable nanocomposite piezoresistive sensor for in situ acquisition of dynamic responses of CFRPs | Authors: | Su, Y Yang, J Liao, Y Zhou, P Xu, L Zhou, LM Su, Z |
Issue Date: | 26-May-2021 | Source: | Composites science and technology, 26 May 2021, v. 208, 108747 | Abstract: | When sensors are embedded in composites for structural integrity monitoring (SIM), the sensors per se, unfortunately, degrade the original integrity of host composites. Envisaging such deficiency and facilitated by advances in nanotechnology, we develop a new type of ultrathin, piezoresistive sensors using spraying coating and nanocomposites formulated with graphene nanoplatelets/polyvinylpyrrolidone. The sensors are deposited on dielectric membranes made of partially pre-cured B-stage epoxy films, electrified using carbon nanotube film (CNT-film)-made wires, and implanted in carbon fibre-reinforced polymer composites (CFRPs), to form a sensor network. Only ~45 μm thick (including wires), the implanted sensors exhibit high compatibility and nonintrusive attributes with CFRPs, enabling composites to perceive broadband signals in situ, ranging from static strain (with a high gauge factor of 34.5) to structure-guided ultrasonic waves up to 450 kHz – the first time that piezoresistive sensors implanted in CFRPs respond to dynamic strains in such a broad frequency band. CFRPs with implanted sensor networks are endowed with capacity of in situ SIM, yet not compromising their original integrity. With remarkably reduced intrusion to composites – as proven in tensile and bending tests, the developed sensors outperform prevailing sensors for SIM of composites such as lead zirconate titanate-based sensors. | Keywords: | CFRPs Guided ultrasonic waves Implantable nanocomposite sensor Piezoresistive sensor Structural health monitoring |
Publisher: | Pergamon Press | Journal: | Composites science and technology | ISSN: | 0266-3538 | EISSN: | 1879-1050 | DOI: | 10.1016/j.compscitech.2021.108747 | Rights: | © 2021 Elsevier Ltd. All rights reserved. © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Su, Y., et al. (2021). "An implantable, compatible and networkable nanocomposite piezoresistive sensor for in situ acquisition of dynamic responses of CFRPs." Composites Science and Technology 208: 108747 is available at https://dx.doi.org/10.1016/j.compscitech.2021.108747. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Su_Implantable_Compatible_And.pdf | Pre-Published version | 1.99 MB | Adobe PDF | View/Open |
Page views
33
Last Week
1
1
Last month
Citations as of May 5, 2024
Downloads
11
Citations as of May 5, 2024
SCOPUSTM
Citations
11
Citations as of Apr 26, 2024
WEB OF SCIENCETM
Citations
8
Citations as of May 2, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.