The development of high performance hybrid joints between epoxy composites and PEEK/PPS composites

The mode-II and mix mode-I/II fracture behaviour

Journal Article (2022)
Author(s)

Dong Quan (Shandong University, TU Delft - Structural Integrity & Composites)

Guoqun Zhao (Shandong University)

Guilong Wang (Shandong University)

Rene Alderiesten (TU Delft - Group Alderliesten)

Research Group
Structural Integrity & Composites
DOI related publication
https://doi.org/10.1016/j.compstruct.2022.115638
More Info
expand_more
Publication Year
2022
Language
English
Research Group
Structural Integrity & Composites
Bibliographical Note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. @en
Volume number
292
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

The development of effective methods for the bonding of Poly-etherether-ketone (PEEK) and Polyphenylene-sulphide (PPS) composites to thermoset composites is appealing to expand their applications in aerospace industry. Herein, the surfaces of PEEK and PPS composites were treated by a high-power UV-irradiation technique for 6 s, that proved to significantly improve their intrinsically low surface activities. Carbon fibre reinforced epoxy composites were then directly cured onto the PEEK and PPS composites with or without an aerospace film adhesive at the joining interfaces. The mode-II and mix mode-I/II fracture behaviour of the hybrid joints were studied using an end notched flexural test and a fixed-ratio mixed-mode test, respectively. It was observed that the failure of the hybrid joints without adhesives mainly took place at the joining interfaces. In this case, the lack of resins at the fracture plane resulted in relatively low fracture toughness. Encouragingly, a cohesive failure was observed for the hybrid joints with adhesives in all the cases, owing to the enhanced adhesion between the adhesive and the PEEK/PPS composites upon the UV-treatment. This phenomenon indicated that optimal fracture resistance of the hybrid adhesive joints was obtained for the given material systems.

Files

1-s2.0-S0263822322004196-main.... (pdf)
(pdf | 3 Mb)
- Embargo expired in 17-02-2025
License info not available