EXPERIMENTAL INVESTIGATION AND SIMULATION OF 3D-PRINTED LATTICE STRUCTURES

Authors

  • Eva Heiml Johannes Kepler Universität Linz, Institute of Polymer Product Engineering, Altenberger Straße 69, 4040 Linz, Austria
  • Anna Kalteis Johannes Kepler Universität Linz, Institute of Polymer Product Engineering, Altenberger Straße 69, 4040 Linz, Austria
  • Zoltan Major Johannes Kepler Universität Linz, Institute of Polymer Product Engineering, Altenberger Straße 69, 4040 Linz, Austria

DOI:

https://doi.org/10.14311/APP.2019.25.0052

Keywords:

Lattice structures, additive manufacturing, mechanical testing, finite element analysis

Abstract

Lattice structures are currently of high interest, especially for lightweight design. They generally have better structural performance per weight than parts made of bulk material. With conventional manufacturing techniques they are difficult to produce, but with additive manufacturing (AM) fabricationisfeasible. To better understand their behaviour under various loading conditions two lattice structures in different configurations were observed. For each structure three different test specimens were designed and manufactured using selective laser sintering (SLS). To investigate the mechanical performance under large deformations the specimens were made of a thermoplastic polyurethane(TPU), which shows a hyperelastic material behaviour. Beside the experimental observations also finite element analyses (FEA) were conducted to investigate the deformation behaviour in more detail.

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Published

2019-12-06

Issue

Vol. 25 (2019): 17th YOUTH SYMPOSIUM ON EXPERIMENTAL SOLID MECHANICS

Section

Articles

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