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DF: Dielektrische Festkörper

DF 4: Internal Symposium “Ferroelectric Materials for Smart Structures”

DF 4.1: Hauptvortrag

Dienstag, 28. März 2006, 09:30–10:10, K{\"O}N Farb

Piezoelectric composite materials for smart structures applications — •Andreas Schönecker — Fraunhofer IKTS, Winterbergstr. 28 , 01277 Dresden

Lightweight design in various industrial branches, like for example traffic technology and mechanical engineering, has become very important, mainly to reduce the effects of accelerated mass. However lightweight structures often suffer from vibrational sensitivity, tendency to buckling, and low damage tolerance, which desires active control of structural dynamics, as well as health monitoring and diagnostics to assure safety and reliability. A promising way to solve these problems is expected by using smart materials. Critical deformations, accelerations or other physical quantities can be detected by integrated sensors and in combination with suitable real-time controllers these impacts can be eliminated by driving structural conformable embedded or applied actuators. This paper will discuss the relevance of ferroelectric materials for smart structures, the issues of integration and the expectations on the progress in material science, system design and technology. For example, composite materials based on PZT fibres, thick and thin films are considered.