Low velocity impact behaviour of a hybrid carbon‐epoxy/cork laminate

This work addresses low velocity impact behaviour of monolithic cross‐ply carbon‐epoxy and hybrid carbon‐epoxy/cork laminates. The [04, 904]s layup was selected due to its high mismatch bending between different oriented layers, which is a critical aspect concerning large delamination development at...

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Bibliographic Details
Published in:Strain 2017-12, Vol.53 (6), p.n/a
Main Authors: Silva, F.G.A., Moura, M.F.S.F., Magalhães, A.G.
Format: Article
Language:English
Subjects:
Carbon
Carbon fiber reinforced plastics
Carbon-epoxy composites
carbon‐epoxy laminates
cohesive zone modelling
Cork
Damage assessment
hybrid
impact behaviour
Impact damage
Impact response
Laminates
Mathematical models
Numerical analysis
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Summary:This work addresses low velocity impact behaviour of monolithic cross‐ply carbon‐epoxy and hybrid carbon‐epoxy/cork laminates. The [04, 904]s layup was selected due to its high mismatch bending between different oriented layers, which is a critical aspect concerning large delamination development at these critical interfaces. The effect of a cork layer inserted at the most critical interface on low velocity impact behaviour of the carbon‐epoxy laminate is discussed. Impact response and resulting damage profiles of monolithic and hybrid laminates are compared, and advantages of the hybrid solution are underlined. A numerical analysis including cohesive zone modelling was also performed to assess the damage profiles obtained for the two laminates analysed. The model revealed to be effective for a better comprehension of damage mechanism for both studied cases.
ISSN:0039-2103
1475-1305
DOI:10.1111/str.12241