Journal
OPTICS AND LASERS IN ENGINEERING
Volume 151, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2021.106888
Keywords
FDM; Carbon PEEK; ESPI; DIC; SEM
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The study demonstrates how a multimodal approach using full-field and non-contact optical techniques, coupled with SEM and optical microscopy, can provide a comprehensive characterization of reinforced composites produced with 3D printing technology during and after tensile and flexural tests.
In the industrial field, it is of great interest to identify fast and low-cost manufacturing procedures to guarantee reliable and functional products. In this frame, 3D printing is a fast and low-cost innovative technique and its capability to produce fibre-reinforced polymer matrix composites widely opens the application possibilities. 3D printing technology can form also composite materials made by short fibres that can be exploited for manufacturing parts and structures in high-tech sectors such as aerospace, automotive or naval, to cite some. Here we show how a multimodal approach can furnish a whole characterisation of reinforced composites produced with a 3D printing technology during and after tensile and flexural tests. In the multimodal strategy, we employed a couple of full-field and non-contact optical techniques, i.e. 2D-Digital-Image-Correlation (2D-DIC) and Electronic Speckle Pattern Interferometry (ESPI) in combination with SEM and optical microscope for analysing the sample at the micro and macroscale. The result of the work allows us to achieve a complete characterisation of the components realized by 3D printing.
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