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Tailoring Piezoimpedance Surface and Configurations of Carbon Nanotube Yarn Sensors for Integrated Damage Detection in Composite Materials

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Florida Agricultural and Mechanical University Tallahassee Tallahassee United States

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Laminated polymeric composites are excellent materials due to their high specific stiffness and strength as well as manufacturing tailorability. Consequently, they are being increasingly used in aerospace applications including various structural components. Existing nondestructive evaluation and structural health monitoring techniques can monitor their condition and integrity, but they are still unable to assess the condition of composite structures in a simple way and in realtime. This project is about investigating the piezoresistive response of carbon nanotube yarns towards their use as sensors in integrated structural health monitoring and developing the know-how to implement damage detection and strain measurement in polymers and composites, and sensing in other applications like temperature and torque measurement. The progress in determining the piezoresistive response of the carbon nanotube yarns has been significant and a more detailed understanding is now available.

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Technical Report,15 Jun 2015,14 Sep 2018



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Approved For Public Release;

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