Work

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

Year: 2019

Type: article

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.

Source: Materials & Design

DOI: 10.1016/j.matdes.2019.107597

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

Institutions: University of Illinois Urbana-Champaign, Khalifa University of Science and Technology

Language: English

Topic: Cellular and Composite Structures

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,700

Funder: National Science Foundation