| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Understanding and Predicting the Deformation Behavior and Failure Modes in Micro-Architected Materials with Gyroid Topologies |
| Author(s) |
Holly Carlton, James Bellino, Jonathan Lind, Brandon Zimmerman, Mukul Kumar |
| On-Site Speaker (Planned) |
Holly Carlton |
| Abstract Scope |
Advancements in metals additive manufacturing has opened up a new design space allowing for tailored mechanical properties of porous structures with remarkable strength-to-weight ratios. One structure of interest due to its favorable deformation behavior is the triply periodic surface gyroid. This study investigates the stress-strain response of Ti-6Al-4V gyroids via in situ compression testing with the goal of mapping the heterogeneous structural response to the macro-scale deformation for samples with different relative densities. The experimental results are then used to validate and tune micro-mechanical based simulations. This study demonstrates the influence of structure on the local stress behavior with relation to the simulated compressive macroscopic response, with attention to the effects of length scales, like relative density and sheet thickness, and geometric manufacturing defects, such as porosity or being over/under built, and microstructure variability, via post processing, on the deformation behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Additive Manufacturing, |