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Hashin-Shtrikman bounds on the effective thermal conductivity of a transversely isotropic two-phase composite material. (English) Zbl 1317.74078
Summary: This paper is concerned with the estimation of the effective thermal conductivity of a transversely isotropic two phase composite. We describe the general construction of the Hashin-Shtrikman bounds from first principles in the conductivity setting. Of specific interest in composite design is the fact that the shape of the inclusions and their distribution can be specified independently. This case covers a multitude of composites used in applications by taking various limits of the spheroid aspect ratio, including both layered media and unidirectional composites. Furthermore the expressions derived are equally valid for a number of other effective properties due to the fact that Laplace’s equation governs a significant range of applications, e.g. electrical conductivity and permittivity, magnetic permeability and many more. We illustrate the implementation of the scheme with several examples.

MSC:
74Q20 Bounds on effective properties in solid mechanics
74Q15 Effective constitutive equations in solid mechanics
74F05 Thermal effects in solid mechanics
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