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Title:Improving hydrostatic performance of 1-3 piezocomposites
Author(s):Li, Li; Sottos, Nancy R.
Subject(s):Hydrostatic Performance
1-3 Piezocomposites
Abstract:Type 1-3 piezocomposites consist of aligned piezoelectric rods embedded in a passive polymer matrix and have better hydrostatic behavior than single phase piezoelectric materials. The improved hydrostatic performance of 1-3 piezocomposites comes from two major effects: the axial stress amplification and the lateral stress reduction in the piezoelectric rods. An improved micromechanical model has been developed to predict the hydrostatic response of 1-3 piezocomposites and to examine the interaction between the piezoelectric rods and the polymer matrix. Effective hydrostatic piezoelectric constants for the composite are predicted and compared to those calculated using a generalized plane strain model. The influence of matrix stiffness, interlayer stiffness, rod aspect ratio, and rod volume fraction on the load transfer and the effective hydrostatic piezoelectric coefficient was investigated. The results obtained provide quantitative information on how various parameters affect the hydrostatic response of the composites.
Issue Date:1994-12
Publisher:Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report:TAM R 778
Genre:Technical Report
Sponsor:Office of Naval Researchearch 94/12
Rights Information:Copyright 1994 Board of Trustees of the University of Illinois
Date Available in IDEALS:2021-11-04

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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