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Strength properties of discontinuous fiber composites
Author(s) -
Chen P. E.
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.760110109
Subject(s) - materials science , composite material , epoxy , aluminium , boron , tungsten , glass fiber , finite element method , shear (geology) , structural engineering , metallurgy , chemistry , organic chemistry , engineering
The longitudinal strengths of unidirectional discontinuous fiber composites have been calculated based on the concept of perturbation effect and the distortional energy criterion, utilizing the finite‐element method. The theoretical results thus obtained are compared with the experimental data as well as the results of shear lag analysis for tungsten‐copper, boron‐aluminum, glass‐epoxy and boron‐epoxy composites. Based on the Jackson‐Cratchley equations, modified for discontinuous fibers, a formula is also proposed for calculating the strengths of randomly oriented discontinuous fiber composites. The results calculated from this formula are compared with the experimental data for aluminum oxide‐aluminum‐silicon and glass‐epoxy composites.