Effect of differing infill structure on tensile performance of 3D printed dumbbells
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Effect of differing infill structure on tensile performance of 3D printed dumbbells

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  • Abstract

    In this investigation, the tensile properties of Polyethylene Terephthalate Glycol (PETG) 3D-printed
    dumbbells with differing internal infill structure were assessed to classify the necessary geometry for the
    optimisation of the functionality of a part. The test pieces were subjected to increasing uniaxial loads under
    tension to generate a stress-strain curve, and thereby data for the associated properties, for each specific
    infill pattern. Hence, a comparison between the strengths of the various patterns is drawn to identify brief
    criteria for the selection of the optimal infill structure in specific applications. It was found that the zig-zag
    infill pattern could take the greatest load without yielding under the application of a uniaxial tension.

  • Authors

    Paul A. Karavaikin

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