Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7227973 | Procedia Engineering | 2017 | 7 Pages |
Abstract
Dynamic materials properties experiments on Sandia National Laboratories Z Machine require increasingly precise electrical current pulse shaping. In the experiment described here, a copper flyer plate is accelerated from rest to 1,600 m/s over a 40 micron flight gap in 50 ns. This flyer then impacts a cerium sample, shock melting the cerium, before subsequent quasi-isentropic ramping to mega-bar pressures. Through predictive simulations, postdicted analysis, and a new computational tool for characterizing inherent Z Machine timing accuracy, qualitative estimates of pulse controllability and experimental design robustness are arrived upon.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Andrew J. Porwitzky, Christopher T. Seagle, Brian J. Jensen,