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Proceedings Paper

Micromechanical behavior of 1-3 piezocomposites
Author(s): Nancy R. Sottos; Li Li; William R. Scott; Martin J. Ryan III
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Paper Abstract

The influence of interphase and matrix stiffness on the sensitivity of 1 - 3 piezocomposites is investigated. An analytical model is first developed to predict the static out-of-plane displacements of a single piezoelectric rod composite. The model accounts for the transversely isotropic nature of the ceramic rod and the presence of an interphase region with different properties from the surrounding matrix. Laser interferometry was then utilized to measure displacement profiles for samples consisting of a single PZT-5H rod embedded in Spurr epoxy. Three different interphase conditions were considered. Both the experimental measurements and theoretical predictions demonstrated that changes in the interphase modulus had a significant effect on the maximum displacement on the rod. Rod displacement and sensitivity decreased with increasing interphase stiffness.

Paper Details

Date Published: 23 July 1993
PDF: 10 pages
Proc. SPIE 1916, Smart Structures and Materials 1993: Smart Materials, (23 July 1993); doi: 10.1117/12.148507
Show Author Affiliations
Nancy R. Sottos, Univ. of Illinois/Urbana-Champaign (United States)
Li Li, Univ. of Illinois/Urbana-Champaign (United States)
William R. Scott, Naval Air Warfare Ctr. (United States)
Martin J. Ryan III, NAVMAR Applied Science (United States)

Published in SPIE Proceedings Vol. 1916:
Smart Structures and Materials 1993: Smart Materials
Vijay K. Varadan, Editor(s)

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