Mechanical properties of 3D printed polymeric Gyroid cellular structures: Experimental and finite element study

Diab W. Abueidda, Mohamed Elhebeary, Cheng Shen (Andrew) Shiang, Siyuan Pang, Rashid K. Abu Al-Rub, Iwona M. Jasiuk

Research output: Contribution to journalArticlepeer-review

Abstract

Gyroid is a member of the triply periodic minimal surfaces (TPMS) family. In this paper, the mechanical properties of Gyroid-structures are investigated both experimentally and computationally. 3D printing is used to fabricate polymeric Gyroid-structure specimens made of PA 2200 at different relative densities. In the finite element analysis, the Arruda-Boyce finite-deformation elasto-viscoplastic model is employed. To perform the finite element analysis, the properties of the 3D printed material are determined by a series of tension and compression tests. The finite element results of the Gyroid-structure agree very well with the experimental data. Also, the uniaxial modulus, compressive strength, and energy absorption of the Gyroid-structures are compared with those of the IWP-, Neovius-, and Primitive-structures from a previous study. The comparison shows that Gyroid-structures have relatively good mechanical properties and compete well with the other TPMS cellular structures.

Original languageEnglish (US)
Article number107597
JournalMaterials and Design
Volume165
DOIs
StatePublished - Mar 5 2019

Keywords

  • 3D printing
  • Architectured materials
  • Finite element analysis
  • Mechanical testing
  • Triply periodic minimal surfaces

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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