Micromechanical Modeling of Piezoelectric-piezomagnetic Composites Using Computational Piezo-Grains (CPGs)

Peter L. Bishay, Satya N. Atluri

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Accurate micromechanical modeling of particle and fibrous composite samples with large number of defects (inclusions, voids, cracks, etc.) using regular finite elements is expensive because of the mesh-refinement used around each defect. Based on Lekhnitskii formulation, we develop new type of elements (named "Computational Piezo-Grains" (CPGs)) with two important features: (1) each element can have an arbitrarily polygonal shape to mimic the shape of grains in the microscale, (2) each element may contain a void or inclusion embedded in its domain. The materials of the matrix and inclusions could be elastic, piezoelectric, or piezomagnetic, allowing for modeling various composite types.

Original languageEnglish
Pages (from-to)167-172
Number of pages6
JournalMaterials Today: Proceedings
Volume3
Issue number2
DOIs
StatePublished - 2016

Keywords

  • Composite
  • Finite elements
  • Inclusion
  • Lekhnitskii
  • Multiferroic
  • Piezoelectric
  • Piezomagnetic
  • Trefftz

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