Use of Digital Image Correlation in Predicting Mechanical Properties of Parts Made by Additive Manufacturing

Pernica, Jakub; Gajdaczek, Tomáš; Černý, Pavel; Dostal, Petr; Brabec, Martin; Korenko, Maroš

doi:10.2478/ata-2023-0022

Abstract

The publication is focused on the anisotropic properties of products of additive manufacturing using a Fused Filament Fabrication technology (FFF). Five different materials used in technical practice were tested. These materials are PLA (polylactic acid), PETG/CF (polyethylene terephthalate-glycol with carbon fibre, composite material), PETG (polyethylene terephthalate-glycol), ABS (acrylonitrile butadiene styrene), and ASA (acrylic styrene acrylonitrile). Mechanical properties are verified by tensile testing according to ASTM D638. Testing is complemented by a digital image correlation method to locate the areas with the highest load transfer. The results have shown clear anisotropic properties of the test specimens. Anisotropic mechanical properties were also confirmed by digital image correlation (DIC).

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Use of Digital Image Correlation in Predicting Mechanical Properties of Parts Made by Additive Manufacturing

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