On the interaction of delamination buckling and damage growth in cross-ply laminates
File(s)
Accepted version
Author(s)
Köllner, Anton
Kashtalyan, Maria
Guz, Igor
Völlmecke, Christina
Type
Journal Article
Abstract
The compressive behaviour of cross-ply laminates with delaminations and matrix cracked layers is investigated by means of an analytical modelling approach. Insight into the post-buckling and damage growth behaviour is obtained owing to comprehensive parametric studies varying delamination length and depth as well as matrix crack density for cross-ply laminates with different layups. The efficient modelling approach comprises the well-known total potential energy principle and the Equivalent Constrained Model for determining reduced stiffness properties depending on the matrix crack density. Thus, unlike previous studies on delamination buckling, the effect of matrix cracked layers is taken into consideration. The analysis of the energy release rates for delamination and matrix crack growth enables the identification of configurations (e.g. delamination depth and length, total thickness of the laminates) which are prone to delamination growth and matrix crack growth, respectively. Beyond that, relationships between post-buckling and damage growth behaviour are identified and discussed.
Date Issued
2020-10-01
Date Acceptance
2020-05-29
Citation
International Journal of Solids and Structures, 2020, 202, pp.912-928
ISSN
0020-7683
Publisher
Elsevier BV
Start Page
912
End Page
928
Journal / Book Title
International Journal of Solids and Structures
Volume
202
Copyright Statement
© 2020 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.sciencedirect.com/science/article/pii/S0020768320302080?via%3Dihub
Subjects
09 Engineering
Mechanical Engineering & Transports
Publication Status
Published
Date Publish Online
2020-06-20