Application of Laser Shadow Streak Image for Studying the Dynamics of Shock Waves in Transparent Materials

Demidov, B. A.; Казаков, Е. Д.; Kalinin, Yu. G.; Krutikov, D. I.; Kurilo, A. A.; Orlov, M. Yu.; Стрижаков, М. Г.; Ткаченко, С. И.; Chukbar, K. V.; Shashkov, A. Yu.

doi:10.1134/s0020441220030094

Cited by 6 publications

(8 citation statements)

References 7 publications

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“…The speed of the front of the second compression wave is less than that of the first one, v2 = 3 km/s. Similar wave pattern was observed in experiments [1] for Plexiglas.…”

Section: Numerical Simulationsupporting

confidence: 87%

“…Laser shadow chronogram was used to visualize the dynamics of the passage of shock waves in transparent materials [1] and to record the plasma dynamics in the diode gap of the generator [2]. The method is based on analysis of the shadow streak image formed by probe laser radiation that passes through a sample.…”

Section: Experimental Studymentioning

confidence: 99%

“…The setup of the experiment and its optical design were detailed in [1]. The sensitivity of the method was estimated there on samples of polymethyl methacrylate (Plexiglas) and K-8 optical glass.…”

Section: Experimental Studymentioning

confidence: 99%

“…The article [1] presents experimental results and theoretical estimates for two targets made of Plexiglas and K8 glass. The main parameters of Plexiglas experiments were the following: the maximum value of the electron beam current I = 44 kA, the average voltage value U = 230 kV, the electron pulse width at half maximum τ1/2 = 150 ns, the beam energy W = 980 J.…”

Section: Numerical Simulationmentioning

confidence: 99%

“…The physical constants for epoxy resin are also close in value to those for Plexiglas as listed in Table 1. Velocity of the compression wave front v and the maximum pressure at the compression wave front Pmax for Plexiglas were estimated in [1] using laser shadow chronogram. The parameters obtained in the calculation for epoxy resin are comparable with the experimental results for Plexiglas, see Table 2.…”

Section: Numerical Simulationmentioning

confidence: 99%

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Study of processes in polymer targets under high-energy exposure

Olkhovskaya¹,

Boykov²,

Gasilov³

et al. 2022

8th International Congress on Energy Fluxes and Radiation Effects

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We studied the impact of a powerful relativistic electron beam on polymer targets at energy density up to 1 kJ/cm2. Experiments were carried out on high current electron accelerator “Kalmar” at beam current up to 45 kA and electron energy up to 300 keV. Laser shadow streak image was used to visualize the dynamics of shock waves in transparent materials. Three-dimensional numerical simulation of gasdynamic phenomena in the diode gap and elastoplastic phenomena that depend on them in the target material was performed using MARPLE3D multiphysics software package. The new technique was designed for end-to-end modeling including heating and evaporation of the target under the action of the electron beam and nonlinear wave processes leading to internal fractures and spalling phenomena in the target material. We use wide-range equation of state for the description of the liquid and solid phases of matter at low temperatures. Appropriate modeling of this complex problem is based on high resolution numerical methods as well as on high performance computing. The implemented computer models are verified by experimental data. The developed software can be used for numerical stress-strain analysis of various structural units loaded by strong pulsed forces and/or energy fluxes.

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“…The speed of the front of the second compression wave is less than that of the first one, v2 = 3 km/s. Similar wave pattern was observed in experiments [1] for Plexiglas.…”

Section: Numerical Simulationsupporting

confidence: 87%

Section: Experimental Studymentioning

confidence: 99%

Section: Experimental Studymentioning

confidence: 99%

Section: Numerical Simulationmentioning

confidence: 99%

Section: Numerical Simulationmentioning

confidence: 99%

See 3 more Smart Citations