Active Structural Fibers for Multifunctional Composite Materials
ARIZONA STATE UNIV TEMPE DEPT OF MECHANICAL AND AEROSPACE ENGINEERING
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The objective of this proposed research program is to investigate the development of a multifunctional material system through the deposition of a piezoelectric film on the surface of a carbon based reinforcing fiber. Piezoelectric materials have a crystalline structure in which the application of an electrical potential generates mechanical strain and vise versa, an applied stress will result in the generation of an electric charge. When piezoelectric materials are used for sensing mechanical vibration the voltage output can be dissipated through a shunt circuit to induce damping in the structure or can be stored and used to power other electronics. Each of these separate functions have significant benefits for DoD applications and together will proved a single material with selective functionality dependent on its use. This program will scale the active fiber from a SiC core 140 m to a carbon fiber core 5 m and perform nanoscale testing to characterize the electromechanical properties of the active fiber. Furthermore, the functionality of this new material for constructing multifunctional materials will be demonstrated.
- Laminates and Composite Materials
- Electricity and Magnetism