Abstract
Effects of fibre/matrix adhesion and residual strength of notched polymer matrix composite laminates (PMCLs) and fibre reinforced metal laminates (FRMLs) were investigated. Two different levels of adhesion between fibre and matrix were achieved by using the same carbon fibres with or without surface treatments. After conducting short-beam shear and transverse tension tests for fibre/matrix interface characterisation, residual strength tests were performed for PMCLs and FRMLs containing a circular hole/sharp notch for the two composite systems. It was found that laminates with poor interfacial adhesion between fibre and matrix exhibit higher residual strength than those with strong fibre/matrix adhesion. Major failure mechanisms and modes in two composite systems were studied using SEM fractography. The effective crack growth model (ECGM) was also applied to simulate the residual strength and damage growth of notched composite laminates with different fibre/matrix adhesion. Predictions from the ECGM were well correlated with experimental data.
Original language | English |
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Pages (from-to) | 1525-1533 |
Number of pages | 9 |
Journal | Composites Part A: Applied Science and Manufacturing |
Volume | 29 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 1998 |
Externally published | Yes |
Keywords
- Effective crack growth model
- Fibre/matrix interface
- Interfacial adhesion
- Notched composite laminates
- Residual strength
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials