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Modulus of short carbon and glass fiber reinforced composites
Author(s) -
Brody H.,
Ward I. M.
Publication year - 1971
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760110209
Subject(s) - materials science , composite material , composite number , modulus , fiber , isotropy , glass fiber , fiber reinforced composite , aggregate (composite) , elastic modulus , physics , quantum mechanics
A theoretical model for a short fiber reinforced composite is proposed. The composite is assumed to consist of an aggregate of sub‐units, each sub‐unit possessing the elastic properties of a reinforced composite in which the fibers are continuous and fully aligned. The elastic constants of a partially oriented composite are then calculated by the Voigt and Reuss averaging procedures, giving upper and lower bounds respectively for the composite modulus. Comparison is made with experimental data for such composites. The measured modulus of glass and carbon fiber composites is found to be given by the Reuss or lower bound, to a good approximation compared with the difference between the bounds, for fiber orientations ranging from almost isotropic to highly aligned.