About this Abstract |
Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
Presentation Title |
Tension-Tension Fatigue Behavior of Carbon/Epoxy Composites with Carbon Nanotube Interlayers |
Author(s) |
Avery D. Brown, Charles E. Bakis, Edward C. Smith |
On-Site Speaker (Planned) |
Charles E. Bakis |
Abstract Scope |
The tensile fatigue behavior of carbon/epoxy laminated composites with and without concentrated carbon nanotube (CNT) interlayers is evaluated. The interlayers consist of either epoxy-impregnated CNT yarns or aligned CNT film. Tensile dynamic properties (storage modulus, loss modulus, and loss factor) and damage development were characterized at several intervals of fatigue cycling at two different stress levels. The storage modulus decreases while the loss modulus and loss factor increase with increased loading cycles. Based on optical microscopic inspection of the free edges and penetrant-enhanced x-ray radiography, it is shown that CNT interlayers accelerate intralaminar matrix cracking and delamination. Residual tensile strength after 10^6 loading cycles at both stress levels will be included in the full paper. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |