By leveraging recent advances in additive manufacturing (AM) and nanotechnology, this research aspires to a new manufacturing framework for functionalizing CFRP with the capacity of in situ, real-time integrity monitoring through life cycle. Made totally via various AM techniques, the CFRP structures consist of the 3D-printed continuous carbon fibers and nylon-based matrix, and Aerosol Jet Printing (AJP)-made implantable piezoresistive sensing units. A nanocomposite ink with Few-Layer Graphene (FLG) and Cellulose Nanocrystals (CNC) is specifically formulated to fabricate the sensing units, and an ultrathin nylon dielectric layer encapsulates each sensing unit for electrical insulation. Multiple such-made sensing units are networked in the CFRP structures. By virtue of the quantum tunneling effect formed among neighboring FLGs, the sensor network sensitively responds to CFRP-guided ultrasonic waves of kilohertz frequencies, as well as static strains applied on the CFRP structures. In conjunction with an enhanced ultrasound tomography algorithm, integrity of CFRP can be monitored in a real-time manner, from manufacturing through service to end-of-life.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.