Significantly enhanced joint strength and fatigue life of aerospace composite joints by using novel PEEK/PPS woven meshes as joining agent

被引：2

作者：

Quan, Dong ^{[1
]}

Qin, Long ^{[2
]}

Chen, Han ^{[3
]}

Liu, Jia ^{[1
]}

Lin, Jun ^{[1
]}

Dong, Guiwei ^{[1
]}

Zhao, Guoqun ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan, Peoples R China

[2] Shandong Av Glory Aviat Stand Parts Co Ltd, Jinan, Shandong, Peoples R China

[3] Chengdu Aircraft Ind Grp Co Ltd, Chengdu, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2024年 / 200卷

基金：

中国国家自然科学基金;

关键词：

Co-cure bonding; Carbon fibre composite; Composite joints; Lap-shear strength; Fatigue;

D O I：

10.1016/j.tws.2024.111926

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The development of advanced joining methods for carbon fibre/epoxy composites is critical for aerospace applications. Herein, advanced PEEK/PPS meshes were used to join carbon fibre/epoxy composites upon a novel co-curing process. The meshes were surface-activated upon an atmospheric plasma technique, which largely promoted the chemical interactions between the meshes and the composite epoxy matrix. The quasi- static joint strengths at both of 22 degrees C and 130 degrees C and fatigue loading resistance of the composite joints were evaluated using a single-lap joint test and the corresponding failure mechanisms were investigated. Encouragingly, the lap-shear strengths and fatigue resistance of the PEEK/PPS mesh-joined composites were larger than that of their counterparts bonded by an aerospace adhesive. Subsequent analysis on the failure surfaces proved PEEK/PPS fibre damage and epoxy crack were the main failure mechanisms of the PEEK/PPS co-cured joints. This work proposed a novel method for the production of robust aerospace joints by co-cure joining the composites using advanced PEEK/PPS meshes.

引用

页数：7

共 3 条

[1] Significantly enhanced structural integrity of adhesively bonded PPS and PEEK composite joints by rapidly UV-irradiating the substrates
Quan, Dong
Alderliesten, Rene
Dransfeld, Clemens
Tsakoniatis, Ioannis
De Freitas, Sofia Teixeira
Scarselli, Gennaro
Murphy, Neal
Ivankovic, Alojz
Benedictus, Rinze
COMPOSITES SCIENCE AND TECHNOLOGY, 2020, 199
[2] Fatigue strength estimation of adhesively bonded tongue and groove joint of thick woven composite sandwich structures using genetic algorithm approach
Canyurt, O. E.
Meran, C.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 2012, 33 : 80 - 88
[3] Fatigue life prediction for woven-roving glass fiber reinforced-polyester composite using SWT parameter or the modified fatigue strength ratio
Elhadary, M.
Abouelwafa, M.N.
Hamdy, A.
Awad, T.
AEJ - Alexandria Engineering Journal, 2007, 46 (05): : 611 - 619

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