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5 May 1995 Smart tagged composite using piezoelectric particles
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A new class of materials called smart tagged composites has great potential for use in structural health monitoring. This paper introduces concepts and interrogation schemes for piezoelectric tagged composite materials. Experiments were undertaken to demonstrate the feasibility of piezoelectric tagging by incorporating PZT-5A particles into a polyester matrix. Several types of diametral compression specimens were fabricated and tested to failure while monitoring the induced charge across electrodes placed on the front and back faces of the specimens. The effect of volume fraction of piezo particles and glass reinforcement was investigated along with connectivity of the piezo phase. Small amounts of graphite were added to some specimens to aid in the poling process, however this proved to be of little benefit. The greatest sensitivity and highest induced fields were obtained for a pseudo 1 - 3 piezocomposite system with 6% volume fraction loading of the piezo phase.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Scott R. White "Smart tagged composite using piezoelectric particles", Proc. SPIE 2442, Smart Structures and Materials 1995: Mathematics and Control in Smart Structures, (5 May 1995);

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