About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Dynamic Behavior of Materials IX
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Presentation Title |
Observation of Shear Band Localization in Ti-64 through In-situ Imaging under Dynamic Compression Conditions |
Author(s) |
Jonathan Lind, Matthew Nelms, Alison Kubota, Mukul Kumar, Nathan Barton |
On-Site Speaker (Planned) |
Jonathan Lind |
Abstract Scope |
Severe deformation of materials can lead to inhomogeneous intense zones of localized strain, called shear bands, serving as the precursor to failure. It has been observed Ti-64 readily shear bands under dynamic compression conditions. A series of plate-impact hole closure experiments with in-situ X-ray radiographic imaging were performed visualizing the inhomogeneous response. Observed regions of sharp discontinuity indicate formation of shear banding. The addition of a low-density filler material in the hole produces a more homogeneous closure response indicating inhibition of shear banding. Post-mortem characterization is performed on the recovered, fully intact samples with results discussed.
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This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, by the Dynamic Compression Sector supported by National Nuclear Security Administration under Award Number DE-NA0002442, used resources of the Advanced Photon Source at Argonne National Laboratory under Contract No. DE-AC02-06CH11357. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, Modeling and Simulation |