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A microstructurally-informed model is developed to describe the uniaxial creep behaviour of a bidirectionally reinforced composite consisting of alumina fibres embedded in a silicon carbide matrix. The model takes into account the creep of fibres and matrix, matrix cracking and the axial stress distributions within the composite. The latter are determined from a modified shear lag analysis which includes the Poisson effect and uses a critical interfacial shear stress as criterion for debonding. This micromechanical model 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: 9th International Conference on Composite Materials, Madrid (ES), July 12-16, 1993
Availability: Available from (1) as Paper EN 37429 ORA
Record Number: 199310640 / Last updated on: 1994-11-29
Original language: en
Available languages: en
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