Page 75 - MSAM-3-3

Materials Science in Additive Manufacturing Gradient porous material design criteria

A B

Figure 2. (A and B) The 3D model and printed samples of the Schon-Gyroid and Schwarz-Diamond uniform porosity materials with the designs of 70 –
71% (3/3), 70 – 72.5% (3/3), and 70 – 75% (3/3)

A B

Figure 3. (A and B) The 3D model and printed samples of the Schon-Gyroid-sheet and Schwarz-Diamond-sheet uniform porosity materials with the designs of
60 – 70 – 80% (2/2/2), 60 – 70 – 80% (3/2/1), and 70 – 80 – 90% (2/2/2)

the first stress drop, the higher the possibility the sample the stress exceeds the yield stress. As a result, it shows a
will failure. On the other hand, if the toughness at the first plateau deformation, where struts keep fracturing when the
stress drop is significantly low, the crack will stop in the stress exceeds the yield stress, thus causing displacement in
porous material, and the other strut fracture occurs while the second stage. Finally, in the third stage, the fractured

Volume 3 Issue 3 (2024) 4 doi: 10.36922/msam.4234