Jalalvand, M., Fotouhi, M. and Wisnom, M. R. (2017) Orientation-dispersed pseudo-ductile hybrid composite laminates – a new lay-up concept to avoid free-edge delamination. Composites Science and Technology, 153, pp. 232-240. (doi: 10.1016/j.compscitech.2017.10.011)
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Abstract
Multi-Directional hybrid composites can suffer from free-edge delamination, a damage mode that doesn't exist in Uni-Directional hybrid composites and can hinder the pseudo-ductility that can be achieved with thin-ply hybrids. This paper presents a new lay-up concept called ‘orientation-dispersed’ laminates to avoid this mode of damage in quasi-isotropic hybrids. It is shown that the energy release rates at the free-edges of orientation-dispersed layups are significantly lower than those in ‘orientation-blocked’ laminates. Finally, the experimental results from two quasi-isotropic layups with π/3 and π/4 intervals are presented showing a good pseudo-ductility with no free-edge delamination.
Item Type: | Articles |
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Additional Information: | This work was funded under the UK Engineering and Physical Sciences Research Council 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: | Jalalvand, M., Fotouhi, M., and Wisnom, M. R. |
Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
College/School: | College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity |
Journal Name: | Composites Science and Technology |
Publisher: | Elsevier |
ISSN: | 0266-3538 |
ISSN (Online): | 1879-1050 |
Published Online: | 16 October 2017 |
Copyright Holders: | Copyright © 2017 The Authors |
First Published: | First published in Composites Science and Technology 153:232-240 |
Publisher Policy: | Reproduced under a Creative Commons license |
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