Effect of defects combined with impact damage on compressive residual strength in curved CFRP specimen

This work reports the results of a test campaign conducted on curved carbon–epoxy​ specimens subjected to impact damage combined with manufactured embedded wrinkle defects in order to study the influence of this combination on the compressive strength. A numerical model was used to model wrinkle def...

Full description

Saved in:
Bibliographic Details
Published in:Thin-walled structures 2023-03, Vol.184, p.110484, Article 110484
Main Authors: Journoud, P., Bouvet, C., Castanié, B., Ratsifandrihana, L.
Format: Article
Language:English
Subjects:
Compression after impact
Curved composite
Damage tolerance
Engineering Sciences
Impact
Mechanics
Numerical model
Wrinkle defects
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This work reports the results of a test campaign conducted on curved carbon–epoxy​ specimens subjected to impact damage combined with manufactured embedded wrinkle defects in order to study the influence of this combination on the compressive strength. A numerical model was used to model wrinkle defects and to carry out a numerical study of their influence on impact and compression after impact (CAI) tests. The model produced acceptable results for low misalignments but for higher levels the model failed. Investigations conducted in this work suggest that damage tolerance studies should consider impact, rather than wrinkle defects, as a priority. •Curved CFRP specimens with embedded wrinkle defects are subjected to impact damage.•Compression after impact tests are analysed numerically with Discrete Ply Model.•Impact and effect of defects interactions are analysed.•Experimental and numerical results show that impact should be considered in priority.
ISSN:0263-8231
1879-3223
DOI:10.1016/j.tws.2022.110484