Dr ELENA SITNIKOVA ELENA.SITNIKOVA@NOTTINGHAM.AC.UK
Research Fellow
Subtle features of delamination in cross-ply laminates due to low speed impact
Sitnikova, Elena; Li, Shuguang; Li, Dafei; Yi, Xiaosu
Authors
SHUGUANG LI shuguang.li@nottingham.ac.uk
Professor of Aerospace Composites
Dafei Li
Xiaosu Yi
Abstract
In cross-ply laminates, the shape of delamination areas, which form due to low velocity impact, have two subtle features, which have been observed consistently in numerous experiments. Those are the pointed delamination tips and the intact zone between the lobes of delamination. However, there have not been any account available in the literature how they can be consistently captured through numerical modelling, and hence these features in published modelling results were often absent. It is the objective of this paper to identify the underlying modelling considerations so that these features can be captured with confidence. A key and unique reason has been identified in each case. Namely, inclusion of intra-laminar damage allows to reproduce the pointed delamination tips, while the gap between the lobes of delamination can be captured by models with sufficiently refined mesh, where friction between the laminas is taken into account. The capability of capturing these subtle features helps to raise the level of fidelity on the simulation of delamination due to impact.
Citation
Sitnikova, E., Li, S., Li, D., & Yi, X. (2017). Subtle features of delamination in cross-ply laminates due to low speed impact. Composites Science and Technology, 149, 149-158. https://doi.org/10.1016/j.compscitech.2017.06.021
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 20, 2017 |
Online Publication Date | Jun 21, 2017 |
Publication Date | Sep 8, 2017 |
Deposit Date | Jun 26, 2017 |
Publicly Available Date | Jun 26, 2017 |
Journal | Composites Science and Technology |
Print ISSN | 0266-3538 |
Electronic ISSN | 1879-1050 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 149 |
Pages | 149-158 |
DOI | https://doi.org/10.1016/j.compscitech.2017.06.021 |
Keywords | Laminate; Delamination; Matrix cracking; Damage mechanics; Friction |
Public URL | https://nottingham-repository.worktribe.com/output/881650 |
Publisher URL | http://www.sciencedirect.com/science/article/pii/S0266353817305699 |
Contract Date | Jun 26, 2017 |
Files
1-s2.0-S0266353817305699-main.pdf
(2.3 Mb)
PDF
Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
You might also like
On understanding the applicability of Mohr-Coulomb failure hypothesis for composite materials using UnitCells©
(2016)
Presentation / Conference Contribution
An excursion into representative volume elements and unit cells
(2017)
Book Chapter
The Tsai-Wu failure criterion rationalised in the context of UD composites
(2017)
Journal Article
A critical review on the rationality of popular failure criteria for composites
(2018)
Journal Article
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search