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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2472

Title: Hybrid composites with shunted piezoelectric particles for vibration damping
Authors: Aldraihem, Osama J.
Baz, A.
Al-Saud, Turki S.
Keywords: Hybrid composites
Shunted piezo-particles
Vibration damping
Conducting particles
Piezo particles
Issue Date: 2007
Publisher: Taylor & Francis
Citation: Mechanics of Advanced Materials and Structures: 14; 413–426
Abstract: An analytical model is proposed to predict the viscoelastic prop- erties of polymer based hybrid composites loaded with shunted piezoelectric inclusions. First, a micromechanics approach is used to develop a three-dimensional compliance matrix of a shunted piezoelectric inclusion embedded in a matrix. Then, the viscoelec- troelastic correspondence principle is used in combination with the Mori-Tanaka method to estimate the effective moduli of the hybrid composites. The loss factor of short fiber, sphere, and thin disk piezoceramic particles are examined. The damping capabili- ties of several hybrid composites are evaluated. The effects of the shunting resistance-frequency parameter, piezoceramics content and constituents’ shapes on loss factor are also investigated. It is observed that hybrid composites consisted of short fiber inclusions offer a superior damping capability when compared with the other shapes. The predicted results show good agreement with the previ- ously reported experimental results.
Description: Corresponding Author Dr. Amr M. Baz, Director of Smart Materials & Structures Research Center, Mechanical Engineering Department, University of Maryland, 2137 Eng. Bldg., College Park, MD. 20742. E-mail: baz@eng.umd.edu.
URI: http://hdl.handle.net/123456789/2472
ISSN: 1537-6494
Appears in Collections:College of Engineering

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