Penetration of tungsten-alloy rods into composite ceramic targets: Experiments and 2-D simulations

Rosenberg, Z.; Dekel, E.; Hohler, V.; Stilp, A.; Weber, K.

doi:10.1063/1.55612

Cited by 5 publications

(12 citation statements)

References 1 publication

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“…[1] that DEF depends upon the ceramic thickness. Moreover, Figure 1 [4] also shows that DEF decreases with the ceramic thickness for silicon carbide. However, detailed analysis about the DOP test data published in the open literature [4][5][6][7][8][9] shows that there exists a linear relation between the residual penetration P r and the ceramic thickness t c over a wide range of ceramic thickness.…”

Section: Introductionmentioning

confidence: 81%

“…Moreover, Figure 1 [4] also shows that DEF decreases with the ceramic thickness for silicon carbide. However, detailed analysis about the DOP test data published in the open literature [4][5][6][7][8][9] shows that there exists a linear relation between the residual penetration P r and the ceramic thickness t c over a wide range of ceramic thickness. The linear relation indicates that the long-rod penetration is a quasi-steady process, and then the ceramic resistance against penetration should be independent of the ceramic thickness; it appears that this is not the case in the DEF obtained by Eq.…”

Section: Introductionmentioning

confidence: 81%

“…[4], the derivative k = ¶P r / ¶t c can be used as a characteristic parameter representing the material ballistic efficiency. Consider a small element in length of DL in the rod projectile.…”

Section: Definition Of Defmentioning

confidence: 99%

See 2 more Smart Citations

Investigation on Ballistic Performance of Armor Ceramics against Long-Rod Penetration

Huang

Zhang

2007

Metall Mater Trans A

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A series of depth-of-penetration (DOF) tests are carried out to investigate the ballistic performance of armor ceramics. Based on the experimental results, an improved differential efficiency factor (DEF) is presented, which demonstrates that the general ballistic efficiency index is independent of the ceramic thickness. It is also shown that the density, internal friction, and compression strength of ceramics are crucial factors that affect the ballistic performance of ceramics significantly through the interaction between the long-rod projectiles and thick-tile armor.

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Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 81%

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Investigation on Ballistic Performance of Armor Ceramics against Long-Rod Penetration

Huang

Zhang

2007

Metall Mater Trans A

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“…Each process investigated must respond to a step rise for its relaxation time and reach a threshold for triggering before its effects can be observed. The impulse required to track and describe Red points indicate the metal and alumina targets discussed earlier [21,22]. Thicknesses refer to ceramic plates on 4340 semi-infinite backing these mechanisms is the shock which must be maintained until the characteristic time for the process has been exceeded.…”

Section: Discussionmentioning

confidence: 99%

“…A series of such experiments has been conducted and results have been collated here to test this behaviour. This data is analysed here to assess the correlation between failed strength and DoP [21,22]. Further, the failed strengths of a range of ceramics corresponding to these ballistic experiments have been conducted and are documented elsewhere [6].…”

Section: Inelastic Flowmentioning

confidence: 99%

On the Failure and Dynamic Performance of Materials

Bourne¹

2011

Exp Mech

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Waves induced by impact initiate deformation mechanisms within a material that precede later flow. An impulse excites a cascade of deformation mechanisms starting with ultrafast and concluding with slower ones. In metals, brittle glasses and polycrystalline ceramics there are a combination of mechanisms with differing relaxation times that condition a loaded target. In the case of ballistic impact, once failure has occurred, long rod penetration can occur and the depth achieved within each target can be scaled with the deformation strengths recorded during the initial high pressure impulse. A review of material shock response and target preconditioning shows a correlation with the ballistic penetration of the target after loading. This indicates that the effect of an initial loading impulse upon material behaviour is a strong feature of the effects observed in many dynamic phenomena.

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Confinement effects on compressive and ballistic performance of ceramics: a review

Zhang

Han

2020

International Materials Reviews

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Ceramic materials have been extensively used as armour materials for nearly 50 years and continue to attract great interest in the field of defense technology. As confinement is crucial for ceramics to achieve enhanced performance, it has become indispensable in ceramic armour systems. This review aims to explore the effects of a wide variety of confinement on ceramic performance, so as to provide scientific insights for further exploration and development of ceramic materials and ceramic-based armour systems for both researchers and engineers. This work first characterises multiaxial compressive experiments of ceramics, explores confinement-induced brittle to ductile transition, and presents pressure-dependent micromechanical and phenomenological constitutive models. Subsequently, the change of fracture mode under compression and the reduction of damage extent under projectile impact are separately discussed. Enhancement in ballistic performance by confining and prestressing ceramics is also introduced, with corresponding physical mechanisms explored. Last but not least, insights into future opportunities and challenges are presented.

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Penetration of tungsten-alloy rods into composite ceramic targets: Experiments and 2-D simulations

Cited by 5 publications

References 1 publication

Investigation on Ballistic Performance of Armor Ceramics against Long-Rod Penetration

Investigation on Ballistic Performance of Armor Ceramics against Long-Rod Penetration

On the Failure and Dynamic Performance of Materials

Confinement effects on compressive and ballistic performance of ceramics: a review

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