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Abstract

Ceramic matrix composites can exhibit considerably higher toughness and damage tolerance than monolithic ceramics, a fact which is particularly valuable in structural, load-bearing applications. The creep behaviour of a bidirectionally reinforced composite consisting of alumina fibres embedded in a silicon carbide matrix is studied by uniaxial testing and by microstructurally-informed modelling. Creep curves exhibit failure strains up to 5.6 %. A micromechanical model accounting for fibre creep, matrix cracking and the axial stress distributions within the composite allows the characterisation of the primary and secondary creep stages.

Additional information

Authors: STEEN M, JRC Petten (NL);VALLÉS J L, JRC Petten (NL)
Bibliographic Reference: Paper presented: International Conference on Mechanisms and Mechanics of Composites Fracture, Pittsburgh (US), October 18-21, 1993
Availability: Available from (1) as Paper EN 37430 ORA
Record Number: 199310641 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en