Bio-Composites for Additive Manufacturing Study of the Mechanical Properties

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Abstract:

The objective of the present research was to identify the mechanical properties of 3D-printed biocomposite parts and their variation with different natural fillers (olive wood and almond shell). The materials were produced by filament extrusion with 5% fiber content in the polylactic acid matrix, and the samples were fabricated using the Material Extrusion Additive Manufacturing process. 3D printed specimens underwent tensile and flexural tests to assess their mechanical properties. The results showed reductions of 5%-18% in the tensile modulus and 10%-38% in the tensile strength for olive wood-and almond shell-based PLA, respectively. The same trend was detected for the flexural properties, with a slight reduction of 2%-3% in the flexural modulus and 3%-5% in flexural strength.

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