Additive Manufacturing and Multi-physical Study of 3D Continuous Carbon Fiber Structural Powered Composites
Abstract
The rapid advancement of mobile electric technologies requires the development of new generation of lightweight structures and materials. Multifunctional composites that can both work as structural materials but also provide electrical energy are promising materials to meet the new requirement. However, these materials pose great challenges for current manufacturing techniques. A lack of understanding in their multifunctional performance further hinders the development of the new multifunctional composites. The overall goal of this project is to design and control integration of load bearing, energy storage and harvesting into a carbon fiber structural powered composite by additive manufacturing. The research objective is to study the coupled mechanical and electrochemical behavior of the additively manufactured novel multifunctional composite through a multi-physical study. A new additive manufacturing method will first be studied by combining coextrusion deposition process with vibration assist. The effects of manufacturing conditions on multifunctional composite structure will be investigated. A multi-physical study will be performed to study the coupled relationship between mechanical and electrochemical performance across multiple length scales, starting from atomic scale. The mechanical behavior and structural health of the fabricated structural powered composite will then be studied with respect to cyclic loads during charging and discharging of integrated structural batteries. The effects of cyclic mechanical loadings on electrochemical performance will further be studied. The conversion between mechanical, electrical and electrochemical energy will be calculated by the established multi-physical model and validated by experiments. On a fundamental level, the findings of this research will elucidate the coupled mechanical and electrochemical properties of the novel structural powered composite. This will help boost performance of next generation lightweight, high-strength multifunctional composite for civil and defense applications. The new additive manufacturing technique will enable fabrication of complex structural powered composite components.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 21, 2022
- Source ID
- FA95502110226XX0
Entities
People
- Xiangyang Dong
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Missouri System