Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 104, Issue -, Pages 14-23Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2017.10.018
Keywords
Misalignment; Automated fibre placement (AFP); CT analysis; Directional orientation
Funding
- CANAL (CreAting Non-conventionAl Laminates) FP7 project
- Vietnamese Ministry of Education and Training
- SIM (Strategic Initiative Materials in Flanders)
- VLAIO (Flemish government agency for Innovation and Entrepreneurship)
- Hercules Foundation [AKUL 09/001]
- QUICOM project of FP7
- Toray Group of the Toray Chair Professorship in KU Leuven
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This paper proposes a methodology for measurement of fibre misalignment in composite laminates based on the structure tensor of fibre orientations extracted from X-ray micro-computed tomography (micro-CT) images. The methodology is applied to carbon fibre/epoxy composites manufactured with two technologies: (1) by prepregging and consolidation in an autoclave and (2) by vacuum assisted resin transfer moulding. The results show that the in-plane inter-ply misalignment of fibres in the prepreg laminate and in the infusion-produced laminate is within 2-4 and 1-2, respectively. The misalignment results allow better understanding of the manufacturing typical fibre orientation precision level for the low pressure (vacuum assisted resin transfer moulding) and high pressure (autoclave) manufacturing. (C) 2017 Elsevier Ltd. All rights reserved.
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