Multifunctional Composite Sensors for Sustainable Infrastructure Systems
| 项目名称： | Multifunctional Composite Sensors for Sustainable Infrastructure Systems |
| 摘要： | To enhance longevity and structural performance, next generation infrastructure systems must integrate high performance material and structural systems that are durable and safe, and health monitoring systems that can obtain real-time data on the condition of structures and timely detect anomalies in the structural performance. Multifunctional composites that are intrinsically smart and durable can avoid deployment of two separate systems (high performance structural systems and health monitoring systems) to achieve this goal. This project will explore the design, fabrication, and implementation of multifunctional cementitious and polymer composites. The proposed multifunctional composites will exploit intrinsic smart properties of shape memory alloy (SMA) fibers. SMAs are a class of metallic alloys that have unique properties such as high strength, large deformation capability, good ductility and damping capacity, long fatigue life, large electrical resistivity and excellent re-centering ability. Using a multiscale micromechanics-based design approach that has been successfully employed in development of various high performance fiber reinforced cementitious composites, the development of SMA-based multifunctional cementitious composites will be explored to simultaneously achieve strain hardening, self-centering, crack width control, high energy absorption and self-monitoring abilities in a single cementitious composite material. In addition, the use of SMA fibers in a thermoset epoxy matrix and shape memory polymer matrix will be investigated. |
| 状态： | Completed |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 管理组织： | Mid-Atlantic Transportation Sustainability Center |
| 项目负责人： | Burden, Lindsay Ivey |
| 执行机构： | University of Virginia, Charlottesville |
| 主要研究人员： | Ozbulut, O E |
| 开始时间： | 20160801 |
| 预计完成日期： | 20180831 |
| 实际结束时间： | 20190131 |
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