About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
Presentation Title |
Dielectric NDE for On-line Cure Monitoring and Defect Detection in Engineered Composites |
Author(s) |
William Flynn, Bryan Gamboa, Sean Garnsey, Ruyan Guo, Amar S. Bhalla |
On-Site Speaker (Planned) |
William Flynn |
Abstract Scope |
Large-scale, continuous manufacturing processes require systems that provide immediate feedback on process yield, and defect detection for quality control. Several non-destructive evaluation (NDE) technologies are available to meet this need, each with its own advantages and drawbacks. Dielectric NDE using capacitive sensors is one candidate for in-situ cure monitoring and on-line defect detection in multi-phase composites. Inkjet printing of the functional materials is an emerging potential fabrication technique that enables flexible devices at relatively low cost. In this paper, we report the results on the evaluation of co-planar interdigital electrode sensors fabricated via inkjet printing for cure monitoring and defect detection. Finite-elements modeling (COMSOL) is used to explore suitable sensor design. Simulation results are used to instruct fabrication of prototype capacitive sensors. Ink-jet printed sensor performance is evaluated and compared to simulation to understand the feasibility of this NDE approach.
Authors acknowledge the collaboration with Boral IPH in these efforts. |