Fotouhi, M. , Jalalvand, M., Saeedifar, M., Xiao, B. and Wisnom, M. R. (2020) High performance quasi-isotropic thin-ply carbon/glass hybrid composites with pseudo-ductile behaviour loaded off-axis. Composite Structures, 247, 112444.
|
Text
215149.pdf - Published Version Available under License Creative Commons Attribution. 9MB |
Abstract
The aim of this work was to investigate the effect of loading angle variation on the pseudo-ductility of quasi-isotropic (QI) hybrid composite laminates. Previously, hybrids of thin-ply carbon fibres and standard glass fibres were found to have an excellent pseudo-ductile behaviour both in unidirectional (UD) and QI configurations when subjected to axial tension in the fibres’ orientations. In this work, the QI laminates, with 60° intervals, have been subjected to a quasi-static tensile load at various off-axis orientations – i.e. 5°, 10° and 20°. The QI hybrid composites were made by sandwiching a QI T300-carbon laminate between the two halves of a QI S-glass laminate. The results showed a pseudo-ductile behaviour with a linear elastic part and a desirable plateau for all the loading directions, however the pseudo-ductile strain decreases when increasing the off-axis angle. Comparing the 20° off-axis with the other cases, there was more active matrix cracking damage before fragmentation in the 20° off-axis plies and it failed earlier than the other samples. Acoustic emission (AE) results confirmed this, with more matrix cracking related AE signals in the 20° off-axis case compared to the other configurations.
Item Type: | Articles |
---|---|
Additional Information: | This work was funded under the UK Engineering and Physical Sciences Research Council (EPSRC) Programme Grant EP/I02946X/1 on High Performance Ductile Composite Technology in collaboration with Imperial College, London. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Fotouhi, Dr Mohammad |
Authors: | Fotouhi, M., Jalalvand, M., Saeedifar, M., Xiao, B., and Wisnom, M. R. |
College/School: | College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity |
Journal Name: | Composite Structures |
Publisher: | Elsevier |
ISSN: | 0263-8223 |
ISSN (Online): | 1879-1085 |
Published Online: | 07 May 2020 |
Copyright Holders: | Copyright © 2020 The Authors |
First Published: | First published in Composite Structures 247:112444 |
Publisher Policy: | Reproduced under a Creative Commons licence |
University Staff: Request a correction | Enlighten Editors: Update this record