Penetration into low-density media: In situ observation of penetration process of various projectiles

Kadono, Toshihiko; Niimi, Rei; Okudaira, Kyoko; Hasegawa, Susumu; Tabata, M.; Tsuchiyama, A.

doi:10.1016/j.icarus.2012.08.026

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…On the other hand, the reason of no spallation in shot number 0606-4 would be different. The density ratio of projectile to target in shot number 0606-4 was very high ~ 9: such high density ratio generally causes a carrot-shaped crater without spallation (e.g., Love et al 1993;Kadono et al 2012). Furthermore, target differences cannot be scaled by only strength and density.…”

Section: Scaling By Conventional Crater Scaling Lawmentioning

confidence: 99%

Effect of projectile shape and interior structure on crater size in strength regime

Kadono

Arakawa

Tsujido

et al. 2022

Earth Planets Space

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Experiments on crater formation in the strength regime were conducted using projectiles of various shapes with an aspect ratio of ~ 1, including both solid and hollow interiors. The surface diameter, inner (pit) diameter, and depth of the craters on basalt and porous gypsum targets were measured. Using the bulk density of the projectile, the surface diameter and depth for basalt and the pit diameter and depth for porous gypsum were scaled using the pi-scaling law for crater formation in the strength regime. The numerical code iSALE was used to simulate the impact of projectiles of various shapes and interior structure with similar bulk densities. Results show that the distributions of the maximum (peak) pressure experienced and particle velocity in the targets were similar regardless of projectile shape and interior structure, implying that the dimensions of the final craters were almost identical. This is consistent with the experimental results. Thus, we conclude that the size of the craters formed by the impact of projectiles with different shape and interior structure can be scaled using a conventional scaling law in the strength regime, using bulk density as projectile density. Graphical abstract

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Section: Scaling By Conventional Crater Scaling Lawmentioning

confidence: 99%

Effect of projectile shape and interior structure on crater size in strength regime

Kadono

Arakawa

Tsujido

et al. 2022

Earth Planets Space

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show abstract

“…In the case of porous targets, a Lavrent'ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia; merzh@hydro.nsc.ru. a high-velocity impact on targets made of high-porosity materials was most frequently studied [4][5][6][7]. Materials for low-density targets were mainly soil or sand.…”

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confidence: 99%

High-velocity impact of steel particles on targets made of porous copper

Merzhievskii

Chistyakov

2014

Combust Explos Shock Waves

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Results of studying the normal impact of small-diameter steel spheres on the surface of semi-infinite targets made of porous copper are reported. Characteristics of craters being formed are compared with results of other investigations of the impact on high-porosity targets. New experimental data form the basis for continuing these studies and can be incorporated into models that describe a high-velocity impact on porous media.

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Scaling of impact-generated cavity-size for highly porous targets and its application to cometary surfaces

Okamoto

Nakamura

2017

Icarus

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Penetration into low-density media: In situ observation of penetration process of various projectiles

Cited by 4 publications

References 28 publications

Effect of projectile shape and interior structure on crater size in strength regime

Effect of projectile shape and interior structure on crater size in strength regime

High-velocity impact of steel particles on targets made of porous copper

Scaling of impact-generated cavity-size for highly porous targets and its application to cometary surfaces

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