Abstract
Abstract The failure of a quasi-isotropic composite laminate containing an embedded out-of-plane fibre wrinkle defect was investigated under tension loading. Laboratory test specimens with controlled severity of fibre waviness were manufactured. Along with recording load-displacement data, high resolution camera images were taken at regular intervals which monitored the initiation and interaction of different damage mechanisms during test. Three-dimensional FE models were built following the geometry of actual test specimens. The information obtained from the tests was used to develop user material subroutines, implemented in Abaqus/Explicit as continuum damage and cohesive zone models for intra- and inter-ply failure respectively. The results of the simulations showed very good correlation with test observations in terms of failure load, location of damage initiation and interaction between different damage mechanisms for a range of waviness cases tested.
Original language | English |
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Article number | 3991 |
Pages (from-to) | 219-228 |
Number of pages | 10 |
Journal | Composites Part A: Applied Science and Manufacturing |
Volume | 77 |
DOIs | |
Publication status | Published - 3 Aug 2015 |
Research Groups and Themes
- Composites UTC
Keywords
- A. Carbon fibres
- B. Delamination
- B. Fracture
- C. Finite element analysis (FEA)