About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Modeling, Simulation and Artificial Intelligence
|
| Presentation Title |
F-33: Modeling and Simulation of the Shock Response in AM Material Accounting for the Retained Porosity |
| Author(s) |
Benoit Revil-Baudard, Peter Sable, Oana Cazacu |
| On-Site Speaker (Planned) |
Benoit Revil-Baudard |
| Abstract Scope |
The major advantage of additive manufacturing (AM) of metallic materials is the capacity to produce parts with complex geometry that are difficult to achieve with conventional processes. However, there exists a lack of understanding of the mechanical response of AM material under high strain-rate loadings. Experiments have shown that even if the mechanical response of additively manufactured (AM) and traditionally processed materials is similar for quasi-static and moderate strain-rates, their mechanical behavior under weak shock is markedly different. Using a numerical study using an elastic-plastic damage model that accounts for the effects of the tension-compression asymmetry in plastic deformation and its influence on porosity evolution, we show that the main reason for this difference in shock behavior is related to the retained porosity. It is revealed that even a very small amount of initial porosity leads to a decrease in shock velocity, which confirms experimental trends. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Modeling and Simulation, Other |