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Numerical homogenization techniques applied to piezoelectric composites.

Eve Lenglet1, Anne-Christine Hladky-Hennion, Jean-Claude Debus

  • 1ONERA-Lille, Solid and Damage Mechanics Department, 5 Boulevard Paul Painlevé, 59045 Lille Cedex, France.

The Journal of the Acoustical Society of America
|February 25, 2003
PubMed
Summary

New modeling tools are essential for designing piezoelectric composites with piezoelectric fibers. A numerical homogenization technique combining representative volume element (RVE) and wave propagation (WP) methods was developed and validated for accurate property tensor determination.

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Area of Science:

  • Materials Science
  • Composite Materials
  • Piezoelectric Engineering

Background:

  • Recent advancements in piezoelectric fiber technology necessitate novel modeling approaches for piezoelectric composites.
  • Existing analytical models may not fully capture the complex behavior of these advanced materials.

Purpose of the Study:

  • To develop and validate a numerical homogenization technique for analyzing piezoelectric composites.
  • To enable the accurate determination of the complete tensor of homogenized properties for these materials.

Main Methods:

  • A numerical homogenization technique was developed using the ATILA finite element code.
  • The technique integrates two methods: representative volume element (RVE) analysis and wave propagation (WP) analysis.
  • The combined approach allows for the computation of the full homogenized property tensor.

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Main Results:

  • The developed numerical technique successfully determined the homogenized properties of a piezoelectric composite.
  • Results obtained from the numerical model were validated against established analytical models for a fiber-embedded epoxy composite.
  • The study demonstrated the efficacy of combining RVE and WP methods.

Conclusions:

  • The novel numerical homogenization technique provides a robust tool for the design and analysis of piezoelectric composites.
  • The method is validated and applicable to various piezoelectric composite structures.
  • This approach facilitates accurate prediction of material properties for advanced piezoelectric applications.