4.7 Article

Inverse homogenization problem: Evaluation of elastic and electrical (thermal) properties of composite constituents

Journal

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
Volume 129, Issue -, Pages 34-46

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijengsci.2018.04.001

Keywords

Composite; Elastic properties; Thermal properties; Electric properties; Inverse problem; Properties of inhomogeneities

Funding

  1. NASA through NM Space Grant Consortium [NNX15AK41A]
  2. NASA [NNX15AK41A, 807482] Funding Source: Federal RePORTER

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The methodology of evaluation of the elastic and electrical/thermal properties of composite constituents from measurements of the overall properties of heterogeneous material is proposed and verified by comparison with experimental data available in the literature and with results of direct Finite Element Method (FEM) simulations. A theoretical approach is based on the solution of the inverse homogenization problem in the frameworks of the Non-Interaction approximation, Maxwell and Mori-Tanaka-Benvemste micromechamcal models. Sensitivity of the results to the shape of inhomogeneities and contrast in matrix/inhomogeneities. properties is discussed. It is observed that reconstruction of matrix properties is generally more accurate in comparison with properties of inhomogeneities. (C) 2018 Elsevier Ltd. All rights reserved.

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