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Computational Thermal Sciences: An International Journal
CiteScore™: 0.7 SNIP: 0.434 SJR: 0.244

ISSN Print: 1940-2503
ISSN Online: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2017015911
pages 63-76

EFFECTIVE MEDIUM APPROXIMATION FOR CONDUCTIVITY OF UNIDIRECTIONAL COATED-FIBER COMPOSITES

Bao-Viet Tran
Construction Engineering Department, University of Transport and Communication, Hanoi, Vietnam; Research and Application Center for Technology in Civil Engineering, University of Transport and Communication, Hanoi, Vietnam
Duc-Chinh Pham
VAST, Institute of Mechanics, 264 Doi Can, Hanoi, Vietnam
Thi-Huong-Giang Nguyen
Faculty of Basic Sciences, University of Transport and Communication, Hanoi, Vietnam

ABSTRACT

Effective medium approximations are developed to estimate the effective conductivity of unidirectional composites that are composed of coated fiber-inclusions embedded in a continuous matrix phase. The two-phase coated inclusions are substituted by equivalent one-phase inclusions from a dilute solution. Then, usual effective medium approximation schemes are applied to the equivalent medium to estimate the conductivity of original three-phase composites. Applications with numerical and experimental illustrations are given for certain periodic and random composites.