Impact of the 7.62-mm APM2 projectile against the edge of a metallic target

Chocron, Sidney; Anderson, Charles E.; Grosch, Donald J.; Popelar, C. H.

doi:10.1016/s0734-743x(00)00063-4

Cited by 51 publications

(24 citation statements)

References 4 publications

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“…Numerical simulation of perforation by application of RK and JC models Impact perforation of steel plates was widely studied in the last decades due to the applications necessary in sev eral engineering fields like aeronautics, automotive or mil itary industries (Borvik et al, 1999;2002a,b;Gupta et al, 2006Gupta et al, , 2007Arias et al, 2008;Rusinek et al, 2008bRusinek et al, , 2008cTeng et al, in press;Piekutowski, 2001;Chocron et al, 2001;Forrestal and Piekutowski, 2000;Dey et al, 2004;Børvik et al, 2005;Chocron et al, 2006;Teng and Wierzbicki, 2006;Voyiadjis and Abu Al Rub, 2006;Rodríguez Martínez et al, 2008). Several works can be found in the international literature dealing with differ ent aspects of the perforation processes, for example, pro jectile geometry (Borvik et al, 2002a,b;Gupta et al, 2006Gupta et al, , 2007Arias et al, 2008;Rusinek et al, 2008b), target thick ness, (Borvik et al, 2003), constitutive relation (Rusinek et al, 2008c), failure criterion (Teng and Wierzbicki, 2006), or material optimization, (Dey et al, 2004).…”

Section: Comparison Between Rk Pb and Jc Constitutive Relations For mentioning

confidence: 99%

Modelling of thermo-viscoplastic behaviour of DH-36 and Weldox 460-E structural steels at wide ranges of strain rates and temperatures, comparison of constitutive relations for impact problems

Klepaczko

Rusinek

Rodríguez-Martínez

et al. 2009

Mechanics of Materials

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a b s t r a c tIn this paper, the thermo viscoplastic behaviour of DH 36 and Weldox 460 E steels is ana lyzed at wide ranges of strain rates and temperatures. These materials are commonly used for naval applications. Thus, they may be subjected to a wide range of exploitation temper atures and at the same time to high strain rates due to accidental impact or explosion. The thermo viscoplastic behaviour of these materials has been modeled by application of RK , and 77 K to about 1000 K). Especially for high strain rate level, the predictions of RK model are notably more precise than those predic tions obtained using PB and JC models. This proof converts RK model in suitable for mod eling impact problems. Finally, numerical simulations of perforation process of DH 36 and Weldox 460 E steel plates impacted by conical non deformable projectiles have been car ried out using RK and JC models. Numerical results using FE simulations have revealed sub stantial influence of the constitutive relation concerning the ballistic limit, residual velocity and failure time predictions for the same initial and boundary conditions.

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Section: Comparison Between Rk Pb and Jc Constitutive Relations For mentioning

confidence: 99%

Modelling of thermo-viscoplastic behaviour of DH-36 and Weldox 460-E structural steels at wide ranges of strain rates and temperatures, comparison of constitutive relations for impact problems

Klepaczko

Rusinek

Rodríguez-Martínez

et al. 2009

Mechanics of Materials

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“…This assumption prevents the energy absorption by the projectile during penetration. In several works [44,45] the projectile behaviour is commonly defined as simply elastic or elastic perfectly plastic without using a failure criterion. In present case, the definition of rigid body changes the numerical predictions concerning the residual velocity.…”

Section: Model Validationmentioning

confidence: 99%

Influence of conical projectile diameter on perpendicular impact of thin steel plate

Rusinek

Rodríguez-Martínez

Árias

et al. 2008

Engineering Fracture Mechanics

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A numerical study of conical projectiles for perpendicular impact on a thin steel plate is reported. The target material considered, Weldox 460 E steel, is frequently used for this kind of application and several results of experiments are avail able in the international literature to verify numerical simulations. The Johnson Cook constitutive relation coupled with the Johnson Cook failure criterion have been applied to analyse penetration of the target and also the failure process. The analysis has been focussed on the influence of the projectile diameter on the perforation process, assuming the same projectile mass. The aim was to preserve the same initial kinetic energy and identical nose angle. The goal is to estimate the ballistic limit, the residual velocity, the plastic work, and the temperature levels produced during the penetration process. The analysis has shown a linear increase of the ballistic limit with the projectile diameter.

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“…The first numerical study authors are aware of was carried out by Chocron et al [12]. In this study, impact of 7.62 mm AP ammunition against edge of a metallic target was investigated to explain the defeating mechanism.…”

Section: Introductionmentioning

confidence: 99%

Ballistic behavior of high hardness perforated armor plates against 7.62mm armor piercing projectile

et al. 2014

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a b s t r a c tIn this paper, some of the important defeating mechanisms of the high hardness perforated plates against 7.62 Â 54 armor piercing ammunition were investigated. The experimental and numerical results identified three defeating mechanisms effective on perforated armor plates which are the asymmetric forces deviates the bullet from its incident trajectory, the bullet core fracture and the bullet core nose erosion. The initial tests were performed on the monolithic armor plates of 9 and 20 mm thickness to verify the fidelity of the simulation and material model parameters. The stochastic nature of the ballistic tests on perforated armor plates was analyzed based on the bullet impact zone with respect to holes. Various scenarios including without and with bullet failure models were further investigated to determine the mechanisms of the bullet failure. The agreement between numerical and experimental results had significantly increased with including the bullet failure criterion and the bullet nose erosion threshold into the simulation. As shown in results, good agreement between Ls-Dyna simulations and experimental data was achieved and the defeating mechanism of perforated plates was clearly demonstrated.

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Impact of the 7.62-mm APM2 projectile against the edge of a metallic target

Cited by 51 publications

References 4 publications

Modelling of thermo-viscoplastic behaviour of DH-36 and Weldox 460-E structural steels at wide ranges of strain rates and temperatures, comparison of constitutive relations for impact problems

Modelling of thermo-viscoplastic behaviour of DH-36 and Weldox 460-E structural steels at wide ranges of strain rates and temperatures, comparison of constitutive relations for impact problems

Influence of conical projectile diameter on perpendicular impact of thin steel plate

Ballistic behavior of high hardness perforated armor plates against 7.62mm armor piercing projectile

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