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Indexed by:期刊论文

Date of Publication:2007-01-01

Journal:ADVANCED COMPOSITES LETTERS

Included Journals:SCIE、EI、Scopus

Volume:16

Issue:1

Page Number:33-37

ISSN No.:0963-6935

Abstract:A 3-D FEA technique was employed to analyze the thermal stress distribution in a carbon fibre/PPESK composite. The zone close to the free surface and to the inner zone were examined, and the parabolic failure criterion was used to predict the potential failure zone of the composite. The obtained results indicated that the maximum residual stress on the fibre surface was located at the fibre/matrix interface with the longest distance between the fibres and the maximum matrix residual stress was located at the composite inner zone with the closest distance between the fibres. The potential failure mechanism in the free-end zone was fibre/matrix interfacial debonding, while the potential failure mechanism in the inner zone was matrix cracking