Some features of the kinetics of high-speed penetration in brittle media

Vlasov, A. S.; Emelyanov, Y.; Zil’berbrand, E. L.; Kozhushko, A. A.; Kozachuk, A. I.; Pugachev, G. S.; Sinani, A. B.

doi:10.1134/1.1261885

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…The ballistic effect of ceramics obviously depends on fist-case penetration parameters, considering the maximum penetration resistance displayed in the first case. Destruction kinetics of ceramics and their behavior upon impact depend both on the intensity of that impact (velocity at collision and impactor density) and on the physical and mechanical properties of ceramics [28]. However, the problem of what properties materials should have to ensure a ballistic effect of ceramic product remains open.…”

Section: Introductionmentioning

confidence: 99%

Concrete Surfacing Using Surface Energy of Nanoparticles

Sychova¹,

Svatovskaya²,

Starchukov³

et al. 2018

IJET

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This article considers scientific and practical principles of concrete surfacing. As it was found, such production can be done by impregnating the surface of high-strength concrete with silica sol, measuring the surface energy of nanoparticles introduced. A technique was introduced for calculating surface energy of sols, so was the range of energy necessary to create concrete with a shock resistant surface, determined by measurement and calculation. The content contains possible reactions resulting in new phases in the concrete top during the impregnation with silica sol. Physical and mechanical characteristics of surfaced concrete were also outlined ad considered, so were the XRD data and electron microscopy data. Various types of energy used to surface concrete until high dynamic strength were compared. This article provides evidence that surface energy of sol nanoparticles can be considered as an independent alternative source.

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Section: Introductionmentioning

confidence: 99%

Concrete Surfacing Using Surface Energy of Nanoparticles

Sychova¹,

Svatovskaya²,

Starchukov³

et al. 2018

IJET

View full text Add to dashboard Cite

show abstract

“…Dynamic resistance to penetration, R t , is conventionally computed from the Alekseevski-Tate equation (see, for example, Vlasov et al, 1997). It has been noted that whereas R t for metals is several times the compressive strength, for brittle materials R t is generally about equal to the compressive strength.…”

Section: Failure Wave Effectsmentioning

confidence: 99%

“…Investigations of brittle materials performed at penetration velocities below V t -(impact velocities up to about 2 km/s) show the penetration parameters to depend primarily on the fracture kinetics (for example, Vlasov et al, 1997, andBless, 1995). These kinetics govern the target strength degradation in a zone ahead of the penetrating projectile and, consequently, the penetration resistance.…”

Section: Failure Wave Effectsmentioning

confidence: 99%