Effect of fibre/matrix adhesion on residual strength of notched composite laminates

Lin Ye, Akbar Afaghi-Khatibi, Glyn Lawcock, Yiu Wing Mai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

43 Citations (Scopus)

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 languageEnglish
Pages (from-to)1525-1533
Number of pages9
JournalComposites Part A: Applied Science and Manufacturing
Volume29
Issue number12
DOIs
Publication statusPublished - Dec 1998
Externally publishedYes

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

Fingerprint

Dive into the research topics of 'Effect of fibre/matrix adhesion on residual strength of notched composite laminates'. Together they form a unique fingerprint.

Cite this