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  4. Electrospun nanofibrous interleaves for improved low velocity impact resistance of glass fibre reinforced composite laminates
 
research article

Electrospun nanofibrous interleaves for improved low velocity impact resistance of glass fibre reinforced composite laminates

Daelemans, L
•
Cohades, A
•
Meireman, T
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2018
Materials & Design

This study analyses the damage tolerance of nanofibre interleaved composites when subjected to low velocity impact. Cross-ply glass/epoxy composite laminates are produced. Drop-weight impact and residual compressive strength measurements are performed on these laminates according to the ASTM D7136 and ASTM D7137 standards for a range of impact energies around the Barely Visible Impact Damage energy limit. Polyamide 6, polyamide 6.9 and polycaprolactone nanofibrous veils with two different veil densities are selected to assess their effect on the damage tolerance. The low velocity impact resistance of nanofibre interleaved laminates increases considerably compared to the virgin material. The (projected) damage area decreases up to 50–60%, especially at higher impact energies where the virgin material shows widespread delamination. As more energy is absorbed in the interleaved laminates by the nanofibres, less damage to reinforcing fibres and matrix resin is produced. Analysis of fracture surfaces shows that the development of nanofibre bridging zones is the main reason for the improved impact damage tolerance.

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Type
research article
DOI
10.1016/j.matdes.2017.12.045
Web of Science ID

WOS:000424945300018

Author(s)
Daelemans, L
Cohades, A
Meireman, T
Beckx, J
Spronk, S
Kersemans, M
De Baere, I
Rahier, H
Michaud, Véronique  
Van Paepegem, W
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Date Issued

2018

Published in
Materials & Design
Volume

141

Start page

170

End page

184

Subjects

Nano particles

•

Damage tolerance

•

Electrospinning

•

Toughening

•

Compression after impact

•

CAI

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPAC  
Available on Infoscience
November 8, 2018
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/150183
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