About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanics at the Extremes: Bridging Length-Scales From Nanoscale to Bulk
|
| Presentation Title |
Evaluating the Effect of Relative Density on the Deformation Behavior of Selective Laser Melted Metal Gyroids |
| Author(s) |
Justin Kerr, Holly Carlton, Brandon Zimmerman, Jonathan Lind, James Bellino, Mukul Kumar |
| On-Site Speaker (Planned) |
Justin Kerr |
| Abstract Scope |
The properties of materials can be tuned by controlling microstructure from the nano to meso-scale. Additive manufacturing has enabled the design of periodic cellular structures that introduce new length scale effects. This work demonstrates precise control over the mechanical properties and deformation behaviors of selective laser melted Ti-6V-4Al gyroids through the scaling of topological features. A wide range of relative densities (3%-90%) are investigated to understand the broad spectrum of stress-strain responses and the scaling behaviors of mechanical properties. Relative density is the primary scale of importance in the gyroid lattice, affecting deformation responses ranging from catastrophic buckling to energy-absorbing shear failure. Leveraging quasistatic compression tests and high-fidelity FE calculations, this study investigates a topology-driven mechanical response and failure behavior that overshadows microstructural effects, opening broad pathways for designers optimizing for extreme environments such as shock loading or thermal transients. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Mechanical Properties |