Influence of Printing Parameters and Testing Temperature on the Tensile Behaviour of 3D-Printed Hemp/PLA

Influence of Printing Parameters and Testing Temperature on the Tensile Behaviour of 3D-Printed Hemp/PLA

Matthieu CARENTON, Fabienne TOUCHARD, Laurence CHOCINSKI-ARNAULT, Damien MARCHAND

Abstract. Fused Filament Fabrication (FFF) is a 3D printing process in which a heated thermoplastic filament is deposited layer by layer through a nozzle to manufacture parts. This work focuses on a fully bio-based short hemp-fibers/PLA-matrix composite. Printing parameters were optimised through thermal characterisation, temperature monitoring during printing and tensile testing. The printing parameters investigated included nozzle temperature, printing speed, the presence of walls and infill line connections, and cooling at the nozzle exit. Tensile tests were then conducted on 3D-printed hemp/PLA samples at ambient temperature for three different raster angles (0°, ±45°, and 90°), and the Classical Laminate Theory was verified. Finally, tensile tests were performed at different testing temperatures from ambient to 110°C and the mechanical behaviour was examined as a function of temperature.

Keywords
Additive Manufacturing, Natural Fibres, Biocomposites, Process Parameters, Thermo-Mechanical Behaviour

Published online 11/8/2026, 4 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Matthieu CARENTON, Fabienne TOUCHARD, Laurence CHOCINSKI-ARNAULT, Damien MARCHAND, Influence of Printing Parameters and Testing Temperature on the Tensile Behaviour of 3D-Printed Hemp/PLA, Materials Research Proceedings, Vol. 73, pp 91-94, 2026

DOI: https://doi.org/10.21741/9781644904459-18

The article was published as article 18 of the book Mechanics of Advanced Materials and Structures

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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