TY - JOUR
T1 - Influence of repass treatment on carbon fibre-reinforced PEEK composites manufactured using laser-assisted automatic tape placement
AU - Chanteli, Angeliki
AU - Bandaru, Aswani Kumar
AU - Peeters, Daniël
AU - O'Higgins, Ronan M.
AU - Weaver, Paul M.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/9/15
Y1 - 2020/9/15
N2 - Laser-assisted automated tape placement (LATP) in-situ consolidation of thermoplastic composites offers an efficient solution for production of large, high performance composite structures. The present work investigates laser repass treatment as a method of enhancing surface roughness and mechanical properties of LATP processed CF/PEEK laminates. Three laminate stacking sequences were studied, viz. [0°]16, [−45°/0°/45°/90°]2s and [±45°]4s. Four repass treatments were performed, including single, double, perpendicular and tool-side repasses. The effect of these repasses on interlaminar shear strength (ILSS), open-hole compression (OHC), in-plane shear (IPS), density, fibre volume fraction, void content and surface roughness was investigated. Surface roughness tests confirmed the improvement of the surface finish due to repass treatment. However, insignificant differences in ILSS values were observed across all repass treatments, but a single laser repass did appear to improve the OHC and IPS performance. Autoclave treated samples were used as a benchmark to compare with LATP processed laminate properties.
AB - Laser-assisted automated tape placement (LATP) in-situ consolidation of thermoplastic composites offers an efficient solution for production of large, high performance composite structures. The present work investigates laser repass treatment as a method of enhancing surface roughness and mechanical properties of LATP processed CF/PEEK laminates. Three laminate stacking sequences were studied, viz. [0°]16, [−45°/0°/45°/90°]2s and [±45°]4s. Four repass treatments were performed, including single, double, perpendicular and tool-side repasses. The effect of these repasses on interlaminar shear strength (ILSS), open-hole compression (OHC), in-plane shear (IPS), density, fibre volume fraction, void content and surface roughness was investigated. Surface roughness tests confirmed the improvement of the surface finish due to repass treatment. However, insignificant differences in ILSS values were observed across all repass treatments, but a single laser repass did appear to improve the OHC and IPS performance. Autoclave treated samples were used as a benchmark to compare with LATP processed laminate properties.
KW - Annealing
KW - Automated fibre placement (AFP)
KW - Carbon fibre/PEEK
KW - Mechanical properties
UR - http://www.scopus.com/inward/record.url?scp=85086457498&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2020.112539
DO - 10.1016/j.compstruct.2020.112539
M3 - Article
AN - SCOPUS:85086457498
SN - 0263-8223
VL - 248
JO - Composite Structures
JF - Composite Structures
M1 - 112539
ER -