Compressive properties of 3D printed auxetic structures: experimental and numerical studies

What is it about?

In this study, the compressive properties of the RCA structure and three common auxetic honeycombs: re–entrant, tetrachiral and anti–tetrachiral, have been investigated and compared. Uniaxial quasi–static compressive tests have been carried out in two in–plane directions (X and Y) for non–symmetric structures (RCA and re–entrant), and in one in–plane direction for the symmetric structures (tetrachiral and anti–tetrachiral). Finite element (FE) models have also been developed using ABAQUS/Explicit and verified by the experimental data.

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Why is it important?

In this study, the mechanical response of the RCA structure under quasi-static compression are investigated for the first time.