2013
DOI: 10.1063/1.4824764
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Behaviour of sand during release from a shocked state

Abstract: The dynamic response of granular materials to an applied shockwave is of wide ranging importance. While the shock Hugoniot has been studied, the shock-release of granular systems has never been experimentally characterised. Here, we present a simple approach to such measurements and present a series of plate impact experiments providing release data for a well characterised dry sand. We discuss the origin of the release behaviour, which we support with further measurements on a weakly bound sandstone.

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Cited by 18 publications
(5 citation statements)
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“…The general form of the Hugoniot and release are similar to those found in other materials such as sand and sandstone [7]. Figure 3 shows the U s -u p Hugoniots of two of these materials, from [7].…”
Section: Resultsmentioning
confidence: 50%
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“…The general form of the Hugoniot and release are similar to those found in other materials such as sand and sandstone [7]. Figure 3 shows the U s -u p Hugoniots of two of these materials, from [7].…”
Section: Resultsmentioning
confidence: 50%
“…FIGURE 3. Hugoniots for the simulated adobe compared to data for both sand and sandstone from [7]. It can be seen that the adobe behaves similarly to the sand despite being denser.…”
Section: Resultsmentioning
confidence: 93%
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“…This is particularly true for high-speed ballistic impact, where carefully controlled studies comparing different grain morphologies or moisture levels are lacking. The aim of this letter is to extend recent studies of one-dimensional shock compaction of sand [6][7][8] to more complex loading geometries, to further probe the fundamental phenomena controlling GM response. We will demonstrate important and counter-intuitive results, most notably that penetration resistance in a wetted sand bed is substantially lower than in dry material with equal or lower density.…”
mentioning
confidence: 99%