| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Microstructural Evolution and Material Properties Due to Manufacturing Processes: A Symposium in Honor of Anthony Rollett
|
| Presentation Title |
Predictions of the Mechanical Behavior Scaling of Beam and Sheet Structures |
| Author(s) |
Jonathan Lind, Brandon Zimmerman, James Bellino, Holly Carlton, Mukul Kumar |
| On-Site Speaker (Planned) |
Jonathan Lind |
| Abstract Scope |
Exotic porous structures such as those now realizable by additive manufacturing (AM) open the design space of tailoring structure (base material, geometry, additional length scales) to their desired or required mechanical properties (stiffness, yield strength, hardening). The addition of structure to the problem has augmented material selection for applications by producing combinations of properties not accessible with bulk solids, even with judicious alloying or thermo-mechanical processing. Here we will present on fully resolved micromechanics-based simulations of the plastic response of various Ti-6Al-4V micro-structures producible by AM. We present observations of the influence of structure on the local stress behavior with relation to the simulated compressive macroscopic response. We verify the simulation methodology through comparison with quasistatic compression testing. Additional discussion will explore the effect of various length scales in the problem, geometric manufacturing defects (porosity, over/under build), and base material variability (strength and ductility achievable through processing) on the macroscopic response through computational studies.
// This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, Additive Manufacturing |