Print Email Facebook Twitter On the sensitivity of ultrasonic welding of epoxy- to polyetheretherketone (PEEK)-based composites to the heating time during the welding process Title On the sensitivity of ultrasonic welding of epoxy- to polyetheretherketone (PEEK)-based composites to the heating time during the welding process Author Tsiangou, E. (TU Delft Aerospace Structures & Computational Mechanics) Kupski, J.A. (TU Delft Structural Integrity & Composites) 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 study aims at assessing the sensitivity of the ultrasonic welding process for joining epoxy- to thermoplastic-based composites sensitivity to the heating time. For that, carbon fibre (CF)/epoxy adherends with a co-cured PEI coupling layer were ultrasonically welded to CF/polyetheretherketone (PEEK) adherends at different heating times. Process-induced changes in the meso and microstructure of these welds were identified and correlated to the weld strength. Subsequently, a processing interval, i.e., a range of heating times resulting in less than 10% decrease of weld strength, was defined. As, expected, the dissimilar composite welded joints were more sensitive to the heating time than the CF/PEEK to CF/PEEK welded joints. However, this effect was less pronounced than expected, since a relatively wide processing interval could be obtained provided that the coupling layer had a sufficient thickness. Subject A. Polymer-matrix composites (PMCs)A. Thermoplastic resinA. Thermosetting resinE. Joints/joining To reference this document use: http://resolver.tudelft.nl/uuid:76551aec-50e4-4bba-b12d-a8ff73327abc DOI https://doi.org/10.1016/j.compositesa.2021.106334 ISSN 1359-835X Source Composites Part A: Applied Science and Manufacturing, 144 Part of collection Institutional Repository Document type journal article Rights © 2021 E. Tsiangou, J.A. Kupski, S. Teixeira De Freitas, R. Benedictus, I.F. Villegas Files PDF 1_s2.0_S1359835X21000592_main.pdf 15.35 MB Close viewer /islandora/object/uuid:76551aec-50e4-4bba-b12d-a8ff73327abc/datastream/OBJ/view