TY - GEN
T1 - Emissivity Study of Hierarchical GFRP-CNT Composites
AU - Anilchandra, A. R.
AU - Pothnis, Jayaram R.
AU - Hajagolkar, Akshay K.
AU - Hegde, Sathyapal
AU - Gururaja, Suhasini
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - Hierarchical composites are materials comprised of multi-scale microstructures ranging from nano to micron size. Glass fibre-reinforced plastic (GFRP) laminated composites with multi-walled carbon nanotubes (CNTs) are one such example. Recent literature studies have shown a significant effect of aligning CNTs with respect to the loading axis on the structural life of a GFRP test specimen subjected to static and dynamic loads. Efforts are underway in the scientific community to measure damage accumulation in such hierarchical structural materials using the infrared (IR) thermography technique. In the present work, a GFRP laminate with 0.1% CNTs was fabricated using a combination of wet hand layup and vacuum bagging techniques. The following set of specimens was fabricated: (i) GFRP without CNTs (C0), (ii) GFRP with randomly dispersed CNTs (CR), (iii) GFRP with aligned CNTs (CꞱ), (iv) neat epoxy (C0-G), and (v) epoxy with randomly dispersed CNTs (CC-G), with the aim of determining the effect of composition on the emissivity of such hierarchical materials. C0 material had the lowest emissivity (0.94) while the CꞱ had the highest (0.99). This study would set the reference for further work on the use of IR techniques to indirectly measure damage accumulation in GFRP hierarchical composites.
AB - Hierarchical composites are materials comprised of multi-scale microstructures ranging from nano to micron size. Glass fibre-reinforced plastic (GFRP) laminated composites with multi-walled carbon nanotubes (CNTs) are one such example. Recent literature studies have shown a significant effect of aligning CNTs with respect to the loading axis on the structural life of a GFRP test specimen subjected to static and dynamic loads. Efforts are underway in the scientific community to measure damage accumulation in such hierarchical structural materials using the infrared (IR) thermography technique. In the present work, a GFRP laminate with 0.1% CNTs was fabricated using a combination of wet hand layup and vacuum bagging techniques. The following set of specimens was fabricated: (i) GFRP without CNTs (C0), (ii) GFRP with randomly dispersed CNTs (CR), (iii) GFRP with aligned CNTs (CꞱ), (iv) neat epoxy (C0-G), and (v) epoxy with randomly dispersed CNTs (CC-G), with the aim of determining the effect of composition on the emissivity of such hierarchical materials. C0 material had the lowest emissivity (0.94) while the CꞱ had the highest (0.99). This study would set the reference for further work on the use of IR techniques to indirectly measure damage accumulation in GFRP hierarchical composites.
KW - Composites
KW - Emissivity
KW - Infrared thermography
UR - http://www.scopus.com/inward/record.url?scp=85200671478&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-3654-6_27
DO - 10.1007/978-981-97-3654-6_27
M3 - Conference contribution
AN - SCOPUS:85200671478
SN - 9789819736539
T3 - Lecture Notes in Mechanical Engineering
SP - 271
EP - 280
BT - Recent Advances in Materials and Manufacturing - Proceedings of ISME 2023
A2 - Chandrashekara, C.V.
A2 - Mathivanan, N. Rajesh
A2 - Hariharan, K.
PB - Springer Science and Business Media Deutschland GmbH
T2 - 21st ISME International conference on Advances in Mechanical Engineering, ISME 2023
Y2 - 13 July 2023 through 15 July 2023
ER -