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Damage detection and self-healing of carbon fiber polypropylene (CFPP)/carbon nanotube (CNT) nano-composite via addressable conducting network

Title
Damage detection and self-healing of carbon fiber polypropylene (CFPP)/carbon nanotube (CNT) nano-composite via addressable conducting network
Author
김학성
Keywords
Carbon fiber polypropylene/carbon nanotube nano-composite; Addressable conducting network; Electrical resistance change method; Damage monitoring; Self-healing
Issue Date
2018-08
Publisher
ELSEVIER SCI LTD
Citation
COMPOSITES SCIENCE AND TECHNOLOGY, v. 167, page. 62-70
Abstract
In this work, damage sensing and self-healing of carbon fiber polypropylene (CFPP)/carbon nanotube (CNT) nano-composite were performed based on addressable conducting network (ACN). To increase damage sensing resolution of CFPP/CNT nano-composite, through-thickness electrical conductivity was improved by adjusting press condition and spraying carbon nanotubes (CNT) between prepregs. From the results, electrical resistivity in thickness direction was reduced to 19.44 Omega.mm under 1.0 MPa and 1.0 wt% of CNT condition. Also, self-healing efficiency was examined with respect to the temperature and time via resistive heating of CFPP/CNT nano composite. As a result, the optimized fabrication and self-healing condition exhibited high resolution of damage sensing with outstanding self-healing efficiency (96.83%) under fourth cycle of repeated three-point bending test.
URI
https://www.sciencedirect.com/science/article/abs/pii/S0266353818306298?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/119815
ISSN
0266-3538; 1879-1050
DOI
10.1016/j.compscitech.2018.07.035
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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