Deformation and Fracturing of Tungsten Pseudoalloys with Nickel and Iron under Impact Loading

Podurets, A. M.; Tkachenko, M. I.; Баландина, А. Н.; Simakov, V. G.; Bragunets, V. A.; Shestakov, E. E.; Adigamov, M. S.; Tereshkina, I. A.; Trunin, I. R.

doi:10.1134/s0031918x22601159

Cited by 2 publications

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“…Fig. 3 shows the calculation in variables pressure−compression of a mixture of aluminum and quartz at ratio of volume fractions 50 : 50, 40 : 60, 30 : 70, and for comparison the shock adiabat for pure quartz is given, using experimental data from [30,34,35]. As noted by the authors of paper [34], the additive model for such mixture description did not allow the shock adiabat of quartz restoration.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…3 shows the calculation in variables pressure−compression of a mixture of aluminum and quartz at ratio of volume fractions 50 : 50, 40 : 60, 30 : 70, and for comparison the shock adiabat for pure quartz is given, using experimental data from [30,34,35]. As noted by the authors of paper [34], the additive model for such mixture description did not allow the shock adiabat of quartz restoration. This is due to the fact that the additivity rule in this approach is approximate, since it assumes the actually non-existent correspondence of compression of components in heterogeneous mixtures and the shock compression of homogeneous components [36,37].…”

Section: Simulation Resultsmentioning

confidence: 99%

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Modeling of shock-wave loading of magnesium silicates on the example of forsterite

Maevskii

2022

Technical Physics

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The results of modeling the shock-wave loading of Mg2SiO4 forsterite, which in this case is considered as a mixture of SiO2 quartz and MgO periclase, are presented. The model is based on the assumption that the components of the mixture under shock-wave loading are in thermodynamic equilibrium. The model allows us to reliably describe the phase transition region. The components of the investigated material are considered as a mixture of low and high pressure phases. Polymorphic phase transitions of quartz and periclase are taken into account in the calculation of forsterite in pressure range from 1 to 1000 GPa. The results are verified by experimental data obtained in dynamic experiments. Keywords: Equation of state, shock adiabat, thermodynamic equality, magnesium silicates, forsterite. DOI: 10.21883/0000000000

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