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In this paper a model for the stress distribution at the fibre-matrix interface in a brittle matrix composite with a 2-dimensional woven reinforcement is developed, which accounts for the interfacial bond conditions and is based on a shear-lag analysis. The uniaxial shear-lag model is consecutively applied to the longitudinal tows with their surrounding intertow matrix and to the longitudinal fibres within their intratow matrix mantle. The presence of transverse tows and fibres can adequately be represented by attributing a normal tensile strength to the interface, associated to the restraining effect of the transverse reinforcement geometry. Using material data from tensile tests on an Al(2)O(3) (f)/SiC composite the model parameters are determined, as well as in situ composite properties which are difficult to obtain experimentally. The model is subsequently incorporated into a numerical approach to describe a pull-out experiment.

Additional information

Authors: STEEN M, JRC Petten (NL);VALLÉS J L, JRC Petten (NL)
Bibliographic Reference: Article: Composite Science and Technology (1996)
Record Number: 199611066 / Last updated on: 1996-09-30
Original language: en
Available languages: en