Abstract
The finite element technique is employed to analyse elastic-plastic composite material systems. Comparisons are made between the behaviour of materials reinforced by cylindrical fibres and plane fibre models. The effect of the size of the end gap between two aligned fibres on the yielding characteristics is examined. It is shown that for both cylindrical and plane single fibre models, the mean applied stress at which yielding of the matrix begins increases with decreasing values of the length/diameter ratio of the fibre. Finally the marked reduction in stress concentration and suppression of the development of plastic zones caused by including the effect of neighbouring fibres are indicated.
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