Fiber composite materials with integrated piezoceramic plates

Volker Krajenski; Gerhard Mook; Peter Wierach; Holger Hanselka

doi:10.1117/12.396417

24 August 2000 Fiber composite materials with integrated piezoceramic plates

Volker Krajenski, Gerhard Mook, Peter Wierach, Holger Hanselka

Proceedings Volume 4073, Fifth European Conference on Smart Structures and Materials; (2000) https://doi.org/10.1117/12.396417
Event: Symposium on Applied Photonics, 2000, Glasgow, United Kingdom

Abstract

In contrast to conventional lightweight material like aluminum or titanium, fiber composites offer the possibility to integrate functional elements directly into the material. Thus, multifunctional materials are developed which have the ability to serve more than the load-carrying function. As there is extensive work on the field of integration of thin piezoceramic platse and foils into carbon fiber reinforced polymeres, this will be focused on in this paper. First, the design of an active carbon fiber composite with integrated piezoceramic is shown. Different fiber layups and connecting methods to supply the piezoceramic are discussed. A sophisticated processing technology for active composite materials, the so-called DP-RTM (Differential Pressure - Resin Transfer Moulding), is presented. Various damage mechanisms may reduce or even destroy the sensing and actuaing capabilities of the piezoceramic material. Therefore the capability of high resolution non-destructive methods to evaluate manufacturing defects as well as defects resulting from mechanical overload is presented. Finally two applications are discussed in more detail to demonstrate the potential of the active composite material. Representing static applications an active composite plate is shown which has an infinite bending stiffness up to a certain load. A second active composite plate is used for active noise control.

Citation Download Citation

Volker Krajenski, Gerhard Mook, Peter Wierach, and Holger Hanselka "Fiber composite materials with integrated piezoceramic plates", Proc. SPIE 4073, Fifth European Conference on Smart Structures and Materials, (24 August 2000); https://doi.org/10.1117/12.396417

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