PSI - Issue 33

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Taoufik Hachimi et al. / Procedia Structural Integrity 33 (2021) 907 – 916 HACHIMI Taoufik et al. / Structural Integrity Procedia 00 (2021) 000–000

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Fig. 10. (a) Extruded filament; (b) (c) filament diameters

3.3. Tensile test The tensile test is the most mechanical test used in the world to investigate the mechanical properties, based on forcing the specimen to deform until its rupture. This test allows you to define the tensile strength and how the specimen can stretch before it breaks , this procedure uses a specific load cell. Yield stress, yield strain, elasticity modulus, and tensile strength limit can be obtained. The goal of this study was to investigate the mechanical properties of the produced filament, mechanical properties of additively manufactured parts using the extruder. Thus, a mechanical tensile test was carried out on samples filament of 1,75mm made of PA6, the tensile testing has been performed using an MTS Tensile Testing Machine see Fig. 11(a) with a load cell of 30 kN. The crosshead speed was 10 mm/min. Fig. 11 (b) shows the tensile test results made for the specimen used. a b

Fig. 11. (a) Tensile test machine; (b) tensile test results.

3.4. Materials characterization: The PA6 filament alone has been charactered. The Fig. 12 present an example of the tensile test for the extruded filament of 1,75mm in diameter.