Abstract
The present paper aims to compare study the effect of porosity and degree of crystallinity on both quasi-static and fatigue behaviours of PA6 and PA12 specimens obtained by the fused filament fabrication (FFF). The glass transition and melting temperatures were measured complementary to understand better the process. Fatigue analysis is here described in visco-elastic domain of material. The results highlight that the mechanical and fatigue properties of PA 12 are better than those of PA6, in spite of almost amorphous state of PA12. Besides, porosity did not reveal the expected influence on these properties. The obtained results are also compared with conventional techniques given by the literature review.
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Acknowledgements
The authors would like to thank Benoit Pichereau and Linamaria Gallegos from Arts et Métiers, Angers Campus, for helpful discussions and technical support.
Funding
This study was supported by the French-Russian collaboration project and financed by Ministry of Education and Science of the Russian Federation as part of the implementation of the state task No. 0707-2020-0034.
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Svetlana, T., Tatiana, T., Sergei, E. et al. Flexural quasi-static and fatigue behaviours of fused filament deposited PA6 and PA12 polymers. Int J Adv Manuf Technol 117, 2041–2048 (2021). https://doi.org/10.1007/s00170-021-07223-y
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DOI: https://doi.org/10.1007/s00170-021-07223-y