A novel approach to identify the thermal conductivities of a thin anisotropic medium by the boundary element method

Yui-Chuin Shiah, Y. M. Lee, T. C. Huang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A common difficulty arises in characterizing the anisotropic properties of a thin sheet of anisotropic material, especially in the transverse direction. This difficulty is even more phenomenal for measuring its mechanical properties on account of its thickness. As the prelude of such investigation, this paper proposes a novel approach to identify the thermal conductivities of an unknown thin layer of anisotropic material. For this purpose, the unknown layer is sandwiched in isotropic materials with known conductivities. Prescribing proper boundary conditions, one may easily measure temperature data on a few sample boundary points. Therefore, the anisotropic thermal conductivities can be calculated inversely. For the inverse analysis, the boundary element method (BEM) is employed to combine with the conjugate gradient method (CGM). For verifying our analysis, numerical experiments were carried out. The obtained results have shown great computational efficiency and accuracy in identifying the thermal conductivities of the thin anisotropic layer.

Original languageEnglish
Pages (from-to)49-71
Number of pages23
JournalComputers, Materials and Continua
Volume39
Issue number1
Publication statusPublished - 2014

Fingerprint

Anisotropic media
Anisotropic Media
Boundary element method
Thermal Conductivity
Boundary Elements
Thermal conductivity
Anisotropic Material
Inverse Analysis
Unknown
Conjugate gradient method
Conjugate Gradient Method
Thin Layer
Computational efficiency
Computational Efficiency
Conductivity
Mechanical Properties
Numerical analysis
Transverse
Numerical Experiment
Boundary conditions

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Modelling and Simulation
  • Mechanics of Materials
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

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A novel approach to identify the thermal conductivities of a thin anisotropic medium by the boundary element method. / Shiah, Yui-Chuin; Lee, Y. M.; Huang, T. C.

In: Computers, Materials and Continua, Vol. 39, No. 1, 2014, p. 49-71.

Research output: Contribution to journalArticle

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