EXPERIMENTAL INVESTIGATION AND SIMULATION OF 3D-PRINTED LATTICE STRUCTURES | Zendy

Eva Heiml | Zendy; Anna Hössinger-Kalteis | Zendy; Zoltán Major | Zendy

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EXPERIMENTAL INVESTIGATION AND SIMULATION OF 3D-PRINTED LATTICE STRUCTURES

Author(s) -

Eva Heiml,

Anna Hössinger-Kalteis,

Zoltán Major

Publication year - 2019

Publication title -

acta polytechnica ctu proceedings

Language(s) - English

Resource type - Journals

ISSN - 2336-5382

DOI - 10.14311/app.2019.25.0052

Subject(s) - materials science , selective laser sintering , thermoplastic polyurethane , lattice (music) , composite material , finite element method , material properties , deformation (meteorology) , mechanical engineering , sintering , structural engineering , engineering , acoustics , elastomer , physics

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 dicult to produce, but with additive manufacturing (AM) fabricationisfeasible. To better understand their behaviour under various loading conditions two lattice structures in dierent congurations were observed. For each structure three dierent 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 nite element analyses (FEA) were conducted to investigate the deformation behaviour in more detail.

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