Abstract
The effect of short micro-fibre-based veils on the mode-I and mode-II interlaminar fracture energies and R-curves of composite laminates is investigated in this study—with an emphasis on the role of veil binders. Non-woven polyphenylene sulfide veils with 10 g/m2 areal weight and two different binders (i.e. cross-linked styrene-acrylic and cross-linked polyester), and non-woven carbon veils with 10 g/m2 areal weight and four different binders (i.e. cross-linked styrene-acrylic, cross-linked polyester, polyester and polyvinyl alcohol) are used for interleaving composite laminates. Carbon/epoxy laminates are manufactured by vacuum-assisted resin infusion with out-of-autoclave curing. The mode-I and mode-II fracture behaviour of the laminates are investigated. The results show that the binders used in the manufacturing of veils can considerably affect the fracture energy, crack path and R-curve behaviour, and that the effect of binders is more pronounced in the laminates with carbon veils than in the laminates with PPS veils.
Original language | English |
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Article number | 107150 |
Journal | Composites Part A: Applied Science and Manufacturing |
Volume | 162 |
Early online date | 19 Aug 2022 |
DOIs | |
Publication status | Published - 1 Nov 2022 |
Keywords
- A. Laminates
- B. Debonding
- B. Fracture toughness
- D. Fractography