Print Email Facebook Twitter On the sensitivity of the ultrasonic welding process of epoxy- to polyetheretherketone (PEEK)-based composites to the welding force and amplitude of vibrations Title On the sensitivity of the ultrasonic welding process of epoxy- to polyetheretherketone (PEEK)-based composites to the welding force and amplitude of vibrations Author Tsiangou, E. (TU Delft Aerospace Structures & Computational Mechanics) Teixeira De Freitas, S. (TU Delft Structural Integrity & Composites) Benedictus, R. (TU Delft Structural Integrity & Composites) Villegas, I.F. (TU Delft Aerospace Structures & Computational Mechanics) Date 2021 Abstract This paper addresses the sensitivity of the ultrasonic welding process for joining dissimilar composites to variations in either the welding force or amplitude of vibrations. For that, carbon fibre (CF)/epoxy specimens were welded to CF/polyetheretherketone (PEEK) specimens, through a polyetheretherimide (PEI) coupling layer co-cured with the CF/epoxy material. It was found that reducing either the welding force or the amplitude of vibrations caused an increase in the heating time and maximum temperatures between the coupling layer and CF/epoxy adherend. In addition, local signs of thermal degradation were found in the CF/epoxy adherend even at welding conditions that resulted in the highest strength. However, such alterations were not significant enough to have an apparent effect on the maximum lap shear strength of the welded joints. Subject Joints/joiningPolymer-matrix composites (PMCs)Thermoplastic resinThermosetting resinUltrasonic welding To reference this document use: http://resolver.tudelft.nl/uuid:8485f597-d62f-4bc4-b59d-ff604e1a48f0 DOI https://doi.org/10.1016/j.jcomc.2021.100141 ISSN 2666-6820 Source Composites Part C, 5 Part of collection Institutional Repository Document type journal article Rights © 2021 E. Tsiangou, S. Teixeira De Freitas, R. Benedictus, I.F. Villegas Files PDF main.pdf 3.73 MB Close viewer /islandora/object/uuid:8485f597-d62f-4bc4-b59d-ff604e1a48f0/datastream/OBJ/view