University of Hertfordshire

Experimental study of micro-spalling fragmentation from melted lead

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Original languageEnglish
Pages (from-to)221-225
Number of pages5
JournalShock Waves
Early online date29 Oct 2015
Publication statusPublished - 31 Mar 2016


In this paper, we conduct an experimental investigation of a Pb target shocked using high explosives through the use of an improved, non-radiographic diagnostic technique called an Asay window. In the case considered, the Pb sample is melted upon release at a shock-breakout pressure of about 38 GPa. By converting the measured velocity profile of an Asay window, the mass and density distributions as a function of spatial distance in the melted Pb sample were quantitatively obtained at different offsets, corresponding with the formation of micro-spalling fragments. The physical analysis is in reasonable agreement with the result for an Sn sample recorded by proton radiography


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ID: 9520957