期刊
COMPOSITES PART B-ENGINEERING
卷 218, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2021.108891
关键词
Additive manufacturing; Fused filament fabrication; Fragmentation; Delamination
资金
- French Government program Investissements d'Avenir (EQUIPEX GAP) [ANR-11-EQPX-0018]
- CPER FEDER project of Region Nouvelle Aquitaine
- French Government program Investissements d'Avenir (EUR INTREE) [ANR-18-EURE-0010]
This study evaluates the interface quality of 3D printed carbon/PA6 composites through testing monofilament and DCB samples, showing promising results.
Fused deposition modelling (FDM) is a promising additive manufacturing technology for the fabrication of continuous fibre reinforced thermoplastic composites. However, a major concern is the performance of the interfacial bonding in these composites. The aim of this study is to evaluate the interface quality of a 3D printed carbon/PA6 composite at two scales: the filament/matrix scale and the interlaminar one. Two different types of samples were made: monofilament composites for performing fragmentation tests, and double cantilever beam (DCB) samples for realising mode I interlaminar fracture tests. After measuring the strength of the individual carbon filament, the fragment lengths were observed by micro-CT and measured in monofilament composites in order to calculate the interfacial shear strength (IFSS). The DCB tests allowed the determination of the interlaminar fracture toughness (G(Ic)) for 0 degrees//0 degrees and +45 degrees //-45 degrees interfaces. The obtained results are promising for such 3D printed composites.
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