@inproceedings{5d1188d2fd6a429aa58d75b15d63e04b,
title = "Influence of sample geometry on sweeping-detonation-wave spallation in tantalum",
abstract = "Widespread research since 1950 has provided a wealth of experimental data concerning shock hardening and the spallation response of materials subjected to square-topped shock-wave loading profiles. Sweeping-wave loading is a significantly different loading history than that achieved by a square-topped impulse or 1-D HE-driven plane-wave shock in terms of the evolving spherical and shear stresses applied. Sweeping-wave loading in a flat-plate geometry was previously observed to: a) yield a lower spall strength than previously documented for 1-D supported-shock-wave loading, b) exhibit increased shock hardening as a function of increasing obliquity, and c) lead to an increased incidence of deformation twin formation with increasing shock obliquity (1). The current sweeping-wave loading of a 10 cm radius curved Ta plate is observed to: a) lead to an increase in the shear stress as a function of increasing obliquity, and b) display a more developed level of damage evolution, extensive voids and coalescence, and lower spall strength with obliquity in the curved plate than in the flat-plate sweeping-detonation wave loading for an equivalent HE loading.",
author = "Gray, \{George Thompson\} and Hull, \{Lawrence Mark\} and Veronica Livescu and Briggs, \{Matthew E\} and Meyer, \{Ross Keith\}",
year = "2017",
month = jan,
day = "13",
doi = "10.1063/1.4971665",
language = "English",
series = "AIP Conference Proceedings",
publisher = "Unknown Publisher",
editor = "Ramon Ravelo and Thomas Sewell and Ricky Chau and Timothy Germann and Oleynik, \{Ivan I.\} and Suhithi Peiris",
booktitle = "Shock Compression of Condensed Matter - 2015",
note = "19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015 ; Conference date: 13-01-2017",
}