The surface energy of fracture in continuous-fibre metal-matrix composites

The results of an exact analysis of plastic flow in the matrix of a plane-strain laminar composite at incipient fracture are used to establish theoretical relations between fracture-surface energy and composite mechanical properties. Estimates of fracture-surface energy for a copper-tungsten composi...

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Bibliographic Details
Published in:Journal of the mechanics and physics of solids 1972-01, Vol.20 (3), p.153-163
Main Author: Thomason, P.F.
Format: Article
Language:English
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Summary:The results of an exact analysis of plastic flow in the matrix of a plane-strain laminar composite at incipient fracture are used to establish theoretical relations between fracture-surface energy and composite mechanical properties. Estimates of fracture-surface energy for a copper-tungsten composite made with their aid are found to compare favourably with published experimental data. These relations also allow estimates to be made of the combinations of fibre and matrix mechanical properties and composite geometry which should lead to the achievement of high fracture toughness.
ISSN:0022-5096
DOI:10.1016/0022-5096(72)90008-7