Abstract
The double cantilever beam (DCB) tests are widely used to assess the interfacial delamination properties of laminated composites. For quasi-static loads, the DCB tests are standardized based on the beam mechanics; for dynamic loads, however, such as high-loading-rate impact and cyclic loads, there is no established analytical theory. This presents a significant obstacle preventing the research community from assessing the delamination behavior of composites or adhesives for their application under complex in-service loads. In this paper, the theory of evaluating dynamic mode-I delamination driving force for DCBs under general displacement loads is developed for the first time, accounting for structural vibration effects. The developed theory is demonstrated by two examples: high-loading-rate split Hopkinson bar impact and cyclic fatigue loads. The analytical solutions are validated by published experiment results and in-house tests. This work provides a fundamental analytical tool to study and assess the fracture behavior of fiber reinforced-polymer composite and adhesive materials under various loading conditions.
Original language | English |
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Article number | 109632 |
Number of pages | 13 |
Journal | Composites Science and Technology |
Volume | 228 |
Early online date | 9 Jul 2022 |
DOIs | |
Publication status | Published - 29 Sept 2022 |
Bibliographical note
© 2022, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ 10.1016/j.compscitech.2022.109632Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.
This document is the author’s post-print version, incorporating any revisions agreed during the peer-review process. Some differences between the published version and this version may remain and you are advised to consult the published version if you wish to cite from it.
Funder
This work was supported by the National Natural Science Foundation of China (Grant No. 51401028 , No. 51271193 , No. 11790292 ), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB22040303 ), and the Innovation Program ( 237099000000170004 ).Publisher Copyright:
© 2022 Elsevier Ltd
Keywords
- Cyclic loads
- Double cantilever beam test
- Dynamic energy release rate
- General displacement loads
- High loading rate and impact
ASJC Scopus subject areas
- Ceramics and Composites
- Engineering(all)