TY - GEN
T1 - Open Hole Fatigue Testing of CNT Infused GFRP Multi-scale Composite Laminates Using Infrared Thermography
AU - Gururaja, Suhasini
AU - Manoharan, Nithinkumar
AU - Pothnis, Jayaram
AU - Chandra, Anil
N1 - Publisher Copyright:
© 2023, The Society for Experimental Mechanics, Inc.
PY - 2023
Y1 - 2023
N2 - Cutout or holes are unavoidable features in composite structures for structural assembly and functionality that often result in regions of fatigue damage initiation. To enhance the fatigue life of the unidirectional glass fiber reinforced plastic (UD-GFRP) laminates around cutouts, multi-walled carbon nanotubes (MW-CNTs) were locally aligned at the periphery of the cutouts via a nonuniform electric field-based dielectrophoresis technique. Previous investigation on open hole tensile strength indicates that orienting CNTs perpendicular to the loading direction (and fiber direction) effectuated maximum increase in the open hole tensile strength. In the current work, fatigue characterization of locally aligned MW-CNT infused UD-GFRP multi-scale composite laminates was investigated. A novel infrared thermography (IRT)-based technique has been employed to characterize open hole fatigue (OHF) behavior of these locally aligned MW-CNT infused UD-GFRP multi-scale composite laminates. Traditional SN curve techniques tend to be time-intensive; therefore, IRT has been adopted to determine the fatigue life of CNT infused GFRP composites.
AB - Cutout or holes are unavoidable features in composite structures for structural assembly and functionality that often result in regions of fatigue damage initiation. To enhance the fatigue life of the unidirectional glass fiber reinforced plastic (UD-GFRP) laminates around cutouts, multi-walled carbon nanotubes (MW-CNTs) were locally aligned at the periphery of the cutouts via a nonuniform electric field-based dielectrophoresis technique. Previous investigation on open hole tensile strength indicates that orienting CNTs perpendicular to the loading direction (and fiber direction) effectuated maximum increase in the open hole tensile strength. In the current work, fatigue characterization of locally aligned MW-CNT infused UD-GFRP multi-scale composite laminates was investigated. A novel infrared thermography (IRT)-based technique has been employed to characterize open hole fatigue (OHF) behavior of these locally aligned MW-CNT infused UD-GFRP multi-scale composite laminates. Traditional SN curve techniques tend to be time-intensive; therefore, IRT has been adopted to determine the fatigue life of CNT infused GFRP composites.
KW - CNT infused GFRP
KW - Dielectrophoresis
KW - Digital image correlation
KW - Infrared thermography
KW - Open hole fatigue
UR - http://www.scopus.com/inward/record.url?scp=85148029881&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-17467-4_3
DO - 10.1007/978-3-031-17467-4_3
M3 - Conference contribution
AN - SCOPUS:85148029881
SN - 9783031174667
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 19
EP - 23
BT - Fracture, Fatigue, Failure and Damage Evolution, Volume 3 - Proceedings of the 2022 Annual Conference on Experimental and Applied Mechanics
A2 - Beese, Allison
A2 - Berke, Ryan B
A2 - Pataky, Garrett
A2 - Hutchens, Shelby
PB - Springer
T2 - SEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2022
Y2 - 13 June 2022 through 16 June 2022
ER -