Experiments studying the flow strength of tantalum up to 30 GPa

In the recent years, there has been a number of experiments performed looking at different platforms or techniques to probe the strength of tantalum. The focus of this research has been to applya shock/double shock drive conditions to determine the flow strength in tantalum up to about 30 GPa. Theelastic/plastic response of tantalum and its interaction with typicallower impedancewindow materials complicatesthe design of these experiments. In this work, we present the results where we applied the shock/reloading techniqueto determine the flow strength of tantalumatinitial loading stress states up to 30GPa. Simulations with and without a PTW strength model are also compared to the experimental data.