Role of matrix porosity and poisson's ratio in the design of high-sensitivity piezocomposite transducers

Pieter J. Swart; Marco Avellaneda

Role of matrix porosity and poisson's ratio in the design of high-sensitivity piezocomposite transducers

Pieter J. Swart, Marco Avellaneda

Mathematics

Research output: Contribution to journal › Conference article › peer-review

Abstract

The inclusion of piezoceramic rods in a passive polymer can highly enhance the piezoelectric effect - a fact which has been exploited in the manufacturing of sensitive transducers. We analyze this phenomenon from the point of view of the theory of composite materials, focusing on the evaluation of d_h, the electro-acoustic coupling coefficient, d_hg_h, the hydrophone figure of merit, and k_h, the corresponding coupling factor measuring electro-mechanical energy conversion. In the limit of large elastic contrast (soft matrix, hard ceramic), this allows for a clear explanation of the decoupling effect of the composite on the electro-acoustic coupling coefficient, as well as the role played by the porosity and Poisson's ratio of the matrix phase.

Original language	English (US)
Pages (from-to)	59-66
Number of pages	8
Journal	American Society of Mechanical Engineers, Aerospace Division (Publication) AD
Volume	45
State	Published - 1994
Event	Proceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA Duration: Nov 6 1994 → Nov 11 1994

ASJC Scopus subject areas

Mechanical Engineering
Space and Planetary Science

Cite this

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title = "Role of matrix porosity and poisson's ratio in the design of high-sensitivity piezocomposite transducers",

abstract = "The inclusion of piezoceramic rods in a passive polymer can highly enhance the piezoelectric effect - a fact which has been exploited in the manufacturing of sensitive transducers. We analyze this phenomenon from the point of view of the theory of composite materials, focusing on the evaluation of dh, the electro-acoustic coupling coefficient, dhgh, the hydrophone figure of merit, and kh, the corresponding coupling factor measuring electro-mechanical energy conversion. In the limit of large elastic contrast (soft matrix, hard ceramic), this allows for a clear explanation of the decoupling effect of the composite on the electro-acoustic coupling coefficient, as well as the role played by the porosity and Poisson's ratio of the matrix phase.",

author = "Swart, {Pieter J.} and Marco Avellaneda",

year = "1994",

language = "English (US)",

volume = "45",

pages = "59--66",

journal = "American Society of Mechanical Engineers, Aerospace Division (Publication) AD",

issn = "0733-4230",

publisher = "American Society of Mechanical Engineers(ASME)",

note = "Proceedings of the 1994 International Mechanical Engineering Congress and Exposition ; Conference date: 06-11-1994 Through 11-11-1994",

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TY - JOUR

T1 - Role of matrix porosity and poisson's ratio in the design of high-sensitivity piezocomposite transducers

AU - Swart, Pieter J.

AU - Avellaneda, Marco

PY - 1994

Y1 - 1994

N2 - The inclusion of piezoceramic rods in a passive polymer can highly enhance the piezoelectric effect - a fact which has been exploited in the manufacturing of sensitive transducers. We analyze this phenomenon from the point of view of the theory of composite materials, focusing on the evaluation of dh, the electro-acoustic coupling coefficient, dhgh, the hydrophone figure of merit, and kh, the corresponding coupling factor measuring electro-mechanical energy conversion. In the limit of large elastic contrast (soft matrix, hard ceramic), this allows for a clear explanation of the decoupling effect of the composite on the electro-acoustic coupling coefficient, as well as the role played by the porosity and Poisson's ratio of the matrix phase.

AB - The inclusion of piezoceramic rods in a passive polymer can highly enhance the piezoelectric effect - a fact which has been exploited in the manufacturing of sensitive transducers. We analyze this phenomenon from the point of view of the theory of composite materials, focusing on the evaluation of dh, the electro-acoustic coupling coefficient, dhgh, the hydrophone figure of merit, and kh, the corresponding coupling factor measuring electro-mechanical energy conversion. In the limit of large elastic contrast (soft matrix, hard ceramic), this allows for a clear explanation of the decoupling effect of the composite on the electro-acoustic coupling coefficient, as well as the role played by the porosity and Poisson's ratio of the matrix phase.

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M3 - Conference article

AN - SCOPUS:0028732254

SN - 0733-4230

VL - 45

SP - 59

EP - 66

JO - American Society of Mechanical Engineers, Aerospace Division (Publication) AD

JF - American Society of Mechanical Engineers, Aerospace Division (Publication) AD

T2 - Proceedings of the 1994 International Mechanical Engineering Congress and Exposition

Y2 - 6 November 1994 through 11 November 1994

ER -

Role of matrix porosity and poisson's ratio in the design of high-sensitivity piezocomposite transducers

Abstract

ASJC Scopus subject areas

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