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June 29, 2026Polymer Composites

Process‐Induced Anisotropy and Fracture Behavior of Pellet‐ 3D Printed PLA and PLA /Flax Biocomposites

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Authors

FAFernando AncioLTL. TávaraLFLuís Ferreira

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Overview

This randomized trial evaluates tensile response in PLA and PLA/Flax composites, suggesting optimal raster orientations for better performance.

Key Points

  • This research aims to characterize the mechanical behavior and fracture response of 3D printed PLA and PLA/Flax biocomposites.
  • Conducted tensile testing on 200 specimens to assess influence of raster orientation and layer height.
  • Measured tensile strength, elastic modulus, and density, using density-normalized metrics.
  • Analyzed fracture surfaces using 3D optical profilometry.
  • FGF-processed PLA achieved tensile strengths of up to 59.5 MPa at 0° raster orientation.
  • PLA/Flax exhibited tensile strengths reaching 45.82 MPa, with moduli 40%-50% lower than reference values.
  • Decreasing layer height improved mechanical performance and reduced fracture surface roughness by 46%.

Cite This Study

Ancio et al. (2026) studied this question.

synapsesocial.com/papers/6a420ba8f91bb43ea9192ac5https://doi.org/10.1002/pc.71361
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