| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
B-13: 3D Printed Models of the Arrangement of Components in Two-phase Composites |
| Author(s) |
Frances Y. Su, Fereshteh A. Sabet, Katherine Tang, Sean Garner, Michael Tolley, Iwona Jasiuk, Joanna McKittrick |
| On-Site Speaker (Planned) |
Katherine Tang |
| Abstract Scope |
Bone is a biological composite with mineral and collagen phases. To better understand the nanostructural arrangement of the phases on the mechanical properties, the effects of phase arrangement using 3D printed samples of simplified models of interpenetrating phases, matrix-inclusion, and discontinuous phase composites were examined. Samples were printed with a stiff polymer (VeroClear) to represent the mineral phase and a soft polymer (TangoBlack) to represent the collagen phase. Analysis of uniaxial compression stress-strain behavior showed that samples with a stiff continuous phase and soft inclusions had the highest stiffness, while samples with discontinuous phases exhibited the lowest stiffnesses. Moreover, these data demonstrated that stiff-inclusion interpenetrating composites have similar stiffnesses to soft-inclusion interpenetrating composites. Samples were also printed in varying scales and revealed that the stiffness and strength of the composites decreased as size decreased. This research is supported by the National Science Foundation (DMR-1507978). |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |