Performance and Lifetime Enhancements due to Detection/Response/Memory and Fracture/Damage Controls of Smart Electronic Composite Materials

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In order to develop design criteria and strength/function assessment methods of smart electronic composite materials, we investigated the detection/response/memory and fracture/damage properties of advanced piezoelectric composites. We discussed theoretically and experimentally the electromechanical behavior of functionally graded piezoelectric materials, piezoelectric fiber/epoxy composites and piezoelectric laminates, and obtained the beneficial results for the design of high performance and long life composite materials.