Experimental Evaluation of Characteristics in Large-Scale 3D-Printed Structures from Wood-Based Polymer Composites
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Abstract
Abstract This study investigates the mechanical and physical properties of a wood-based polymer composite DuraSense® 3D S50 Flex K to enhance its potential in large-scale additive manufacturing by studying the influence of printing orientation on the mechanical characteristics of the product. To assess performance, the specimens were produced with different printing layer orientations: at 0°, 30°, 45°, and 90° to the sample length, which corresponds to load application during the tests. Tensile strength, flexural strength, modulus of elasticity, hardness, water absorption, thermophysical properties and microstructure were determined for the samples. The 0° specimens exhibited the highest tensile (15.39 MPa) and flexural strength (26.05 MPa), while the 90° orientation specimens showed reductions in strength of 72% and 69%, respectively. The modulus of elasticity also decreased by 71% at 90°, confirming anisotropy. Additional tests revealed a Brinell hardness of 179.9 N/mm 2 , a water absorption of 19.75%, with minimal dimensional change, and a thermal conductivity of 0.1553 W/m·K. Microscopic analysis showed porosity and uneven fibre distribution, indicating the need for composite optimisation. These findings confirm the importance of orientation-aware design in large-scale additive manufacturing and provide the background for future work focusing on the development of printing strategies and computational modelling to enhance print quality, interlayer adhesion, and performance in applications.
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Research context
OpenAlex topics: Additive Manufacturing and 3D Printing Technologies · Polymer Foaming and Composites · Natural Fiber Reinforced Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
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