Novel approach for damage detection in multiscale CNT-reinforced composites via wireless Joule heating monitoring
Fecha
2022
Título de la revista
ISSN de la revista
Título del volumen
Editor
Elsevier
Resumen
A novel method for strain and crack propagation monitoring based on Joule heating capabilities of multiscale
carbon nanotube reinforced glass fiber composites (GFRP-CNT) is reported. The manufactured GFRP-CNT
composites show good Joule heating capabilities with heating rates ranging from 3 to 56 ◦C min− 1 at applied
voltages from 30 to 105 V, respectively. Multiscale GFRP-CNT composites present similar tensile strength and
Young’s Modulus than conventional GFRP but very enhanced failure strain due to the toughening effect of CNTs.
The wireless monitoring via Joule heating shows a very high sensitivity and strain resolution (with values
ranging from 0.01 to 0.1%) for early crack initiation and subsequent propagation. Finally, the thermal IR imaging also allows to create a complete mapping of the health of the structure during the whole test, allowing the
detection, localization and quantification of early damage and, thus, proving an outstanding potential for
Structural Health Monitoring (SHM) applications in comparison to other conventional techniques.
Descripción
This work was supported by the Ministerio de Economía y Competitividad of Spanish Government [PID2019-106703RB-I00].
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Citación
Xoan F Sánchez-Romate, Carlos González, Alberto Jiménez-Suárez, Silvia G. Prolongo, Novel approach for damage detection in multiscale CNT-reinforced composites via wireless Joule heating monitoring, Composites Science and Technology, Volume 227, 2022, 109614, ISSN 0266-3538, https://doi.org/10.1016/j.compscitech.2022.109614
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