| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Biomaterials for 3D Printing of Scaffolds and Tissues
|
| Presentation Title |
The Influence of Iso-value on 3D-printed Sheet TPMS Ti6Al4V Scaffolds’ Mechanical Responses |
| Author(s) |
Xin Zhang, Dekun Zhang, Rizhi Wang |
| On-Site Speaker (Planned) |
Rizhi Wang |
| Abstract Scope |
Mechanical properties of porous implants contribute important functions for load-bearing bone tissue reconstruction. Sheet TPMS, compared with truss structures and skeletal TPMS, shows better mechanical performance and biological advantages. The mechanical performance of offset sheet TPMS is still unclear. This work systematically studied how iso value C influences sheet diamond’s mechanical performance and compared them with classic truss structure Octet. It was found that when porosity is higher than 75%, OSD0.5 has the highest elastic modulus and yield strength. By fitting the Gibson-Ashby model, we found that the failure mechanisms of OSD are different by changing iso value C. FEA results show local yielding initiates at cell nodes upon loading, followed by surface bending and wrinkles. This work explains different shear band formations and failure mechanisms. It was also found that changing iso-value C could improve the sheet TPMS structure’s mechanical property at a high porosity level. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Additive Manufacturing, Titanium |