The effect of aspect ratio of inclusions on the elastic properties of unidirectionally aligned composites

Polymer Composites - Tập 5 Số 4 - Trang 327-333 - 1984
G. P. Tandon1, George J. Weng1
1Department of Mechanics and Materials Science, Rutgers University, New Brunswick, NJ 08903

Tóm tắt

AbstractThis paper examines the influence of aspect ratio α, from zero to infinity, on the effective elastic moduli of a transversely isotropic composite. The reinforcing inclusions, which could be flakes or short fibers, are assumed to be spheroidal and unidirectionally aligned. Of the five independent elastic constants, the longitudinal Young's modulus E11 and in‐plane shear modulus μ12 appear to increase with increasing aspect ratio, while the transverse Young's modulus E22, out‐plane shear modulus μ23, and plane‐strain bulk modulus K23, generally decrease. It is further noted that E11 is more sensitive to α when α > 1 but the others are more so when α < 1. The present analysis was carried out by the combination of Eshelby's and Mori‐Tanaka's theories of inclusions.

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Polymer Composites

Tập 5 Số 4

327-333

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