Study on Optimization of Transverse Thermal Conductivities of Unidirectional Composites  

Oleh:

Yongting, Ma ; Zhang, Duanming ; Zou, Mingqing ; Boming, Yu

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 125 no. 6 (Dec. 2003), page 980-987.
Topik: composites engineering; optimization; transverse thermal; conductivities; composites

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.7 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Two models, E - S and R - S unit cell models, are presented based on the thermal - electrical analogy technique. The analytical expressions for transverse thermal conductivities of unidirectional composites are derived. The dimensionless effective transverse thermal conductivities ke(+) are expressed as a function of the ratio (b) of thermal conductivities of filler to matrix, filler volume fraction (v(f)) and the geometry ratio (p = a / b) of the filler. The optimization of transverse thermal conductivities of unidirectional composites is then analyzed under different filler volume fractions v(f), thermal conductivity ratios b and different geometric architectures. The present analysis allows for a fairly precise evaluation of configuration performance and comparisons of different arrangements. The results show that if a composite is designed for insulation material, we should choose P < 1, and if a composite is designed for heat dissipating purpose, we should choose P > 1.

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