| Autor: |
J. L. Wise, S. C. Jones, C. A. Hall, J. R. Asay, D. M. Sanchez, Mark Elert, Michael D. Furnish, Ricky Chau, Neil Holmes, Jeffrey Nguyen |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| Popis: |
Complementary gas‐gun and electromagnetic pulse tests conducted in Sandia's Dynamic Integrated Compression Experimental (DICE) Facility have, respectively, probed the behavior of electronic‐grade Kovar® samples under controlled impact and intermediate‐strain‐rate ICE (Isentropic Compression Experiment) loading. In all experiments, velocity interferometer (VISAR) diagnostics provided time‐resolved measurements of sample response for conditions involving one‐dimensional (i.e., uniaxial strain) compression and release. Wave‐profile data from the gas‐gun impact experiments have been analyzed to assess the Hugoniot Elastic Limit (HEL), Hugoniot equation of state, spall strength, and high‐pressure yield strength of shocked Kovar®. The ICE wave‐profile data have been interpreted to determine the locus of isentropic stress‐strain states generated in Kovar® for deformation rates substantially lower than those associated with a shock process. The impact and ICE results have been compared to examine the influence of loading rate on high‐pressure yield strength. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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