Measurements of the viscosity of iron and uranium under shock compression

Минеев, В. П.; Funtikov, A. I.

doi:10.1007/s10740-006-0113-0

Cited by 10 publications

(3 citation statements)

References 38 publications

(54 reference statements)

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“…In contrast, Mineev and Zaidel [3] studied the liquids water and mercury. More recently, Mineev and Funtikov [4][5][6] have published additional results utilizing the technique.…”

Section: Introductionmentioning

confidence: 99%

Shock Wave Perturbation Decay in Granular Materials

Vogler

2015

J. dynamic behavior mater.

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A technique in which the evolution of a perturbation in a shock wave front is monitored as it travels through a sample is applied to granular materials. Although the approach was originally conceived as a way to measure the viscosity of the sample, here it is utilized as a means to probe the deviatoric strength of the material. Initial results for a tungsten carbide powder are presented that demonstrate the approach is viable. Simulations of the experiments using continuum and mesoscale modeling approaches are used to better understand the experiments. The best agreement with the limited experimental data is obtained for the mesoscale model, which has previously been shown to give good agreement with planar impact results. The continuum simulations indicate that the decay of the perturbation is controlled by material strength but is insensitive to the compaction response. Other sensitivities are assessed using the two modeling approaches. The simulations indicate that the configuration used in the preliminary experiments suffers from certain artifacts and should be modified to remove them. The limitations of the current instrumentation are discussed, and possible approaches to improve it are suggested.

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“…In contrast, Mineev and Zaidel [3] studied the liquids water and mercury. More recently, Mineev and Funtikov [4][5][6] have published additional results utilizing the technique.…”

Section: Introductionmentioning

confidence: 99%

Shock Wave Perturbation Decay in Granular Materials

Vogler

2015

J. dynamic behavior mater.

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“…Presume that the last obtained approximate solution is termed as δu i , where i stands for the iteration number. Now, the equation ( 65) can be rewritten as [74] u n + 1 i − 1 δu = F − R u n + 1 i − 1 (67) The equation ( 67) is then solved for δu i and the next corresponding solution is determined as Δu i = Δu i − 1 + δu i and u n + 1 i = u n + Δu i ( 68)…”

Section: Full Newton-raphson Algorithmmentioning

confidence: 99%