About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Materials Kinetics and Mechanisms Under External Forcing-Driven Conditions
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| Presentation Title |
Reshock Behavior of Aluminum-1100 Alloy |
| Author(s) |
Jeevan Dalip, Harrison Horn, Anirban Mandal, Christopher Wehrenberg, Jonah Madrid, Minta Akin |
| On-Site Speaker (Planned) |
Jeevan Dalip |
| Abstract Scope |
Reverse impact experiments were performed using a two-stage light gas gun to examine the reshock response of Al-1100 alloy. A bilayer impactor consisting of an Al sample and a high-impedance backing material was impacted against a <111>-oriented Gadolinium Gallium Garnet window. Upon impact, Al samples were first shocked to (or near) the solid-liquid mixed-phase region along the principal Hugoniot and then reshocked to a higher pressure. The measured reshock velocity, determined from the shock breakout times recorded at the Al/GGG interface using PDV probes, was used to obtain the pressure and density of the reshocked Al alloy with high precision. Our data enable us to explore the validity of the “reflection approximation” employed during impedance matching. We will discuss our findings and compare them to EOS model predictions.
(This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-ABS-2002450) |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Phase Transformations, Mechanical Properties |