Interleaving light veils to minimise the trade-off between mode-I interlaminar fracture toughness and in-plane properties

Interleaving heavy micro-fibre veils, commonly used to improve interlaminar fracture toughness, severely compromises tensile and compressive properties. To reduce the trade-off, this study interleaved two different types of light (4 g/m2) co-polyamide veils into a thin-ply quasi-isotropic baseline laminate. Sub-micron resolution X-ray micro-computed tomography provided insight into the after-manufacturing state of the veil fibres as well as into...