Experimental and numerical studies on the behavior of thin aluminum plates subjected to impact by blunt- and hemispherical-nosed projectiles

Gupta, Neelam; Iqbal, M.A.; Sekhon, G.S.

doi:10.1016/j.ijimpeng.2005.06.007

Cited by 228 publications

(124 citation statements)

References 11 publications

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“…Nowadays several publications can be found in the international literature dealing with high strain rate behaviour of different metallic materials directly related to engineering applications like automotive (Rusinek et al, 2008a;Larour et al, 2007;Mae et al, 2007;Smerd et al, 2005), civil (Kobayashi et al, 2008;Shanmugama et al, in press;Zaera et al, 2002), aeronautical (Fasanella and Jackson, 2001;Piekutowski, 1999) or naval (Nemat Nasser and Guo, 2003;Martineau et al, 2004) industries. Particularly, the behaviour of high strength sheet metals 1 when subjected to high velocity impact by rigid projectiles has raised a considerable interest as it is illustrated in the works (Borvik et al, 2002a,b;Gupta et al, 2006Gupta et al, , 2007Ar ias et al, 2008;Rusinek et al, 2008b). A common charac teristic of most of those works is that during experiment of perforation, specimen remains at room temperature during a high strain rate deformation.…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…Furthermore, it was stated that at the highest impact velocities, deformation of the projectile might become a significant factor and might influence the overall resistance of the panel. Gupta et al [32] presented experimental and numerical investigations of perforation of thin aluminium plates by blunt and hemispherical-nosed projectiles. The results obtained in that study were similar to those previously discussed; namely higher ballistic limit was found for the hemispherical projectile.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on ballistic resistance of aluminium multi-layered panels impacted by improvised projectiles

2017

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This paper presents a numerical study of perforation of the aluminium multi-layered targets impacted by steel projectiles in the shape of a ball, nut and nail. For the construction of the protective panels arc-, rectangular-, V-and U-shaped sheets of metal were considered. During the tests the panel thickness was constant at 160 mm. The panels were composed of 1.5-mm-thick aluminium sheets, and the initial speed of debris was 500 m/s. A comprehensive numerical study indicated the shape of the layer that had superior ballistic resistance and the best strength-to-weight ratio. Computational analyses were also used to investigate the influence of thermal softening and strain rate hardening in the Johnson-Cook constitutive model on the ballistic performance of layered targets. The number of layers required to stop the penetrating objects was compared for the rigid and deformable projectiles. Based on the comparative studies, some guidelines for engineering tasks involving exploration of number of possible technical solutions were proposed.

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“…The failure mode of target struck by a blunt nosed projectile (Børvik et al, 2001;2002;Gupta et al, 2006;Arias et al, 2008;Børvik et al, 2009;Dean et al, 2009), hemispherical projectile (Børvik et al, 2002;Gupta et al, 2006; and ogive nosed projectile (Gupta et al, 2007;2010a;2012) has been investigated.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of the nose shape on the ballistic limit was investigated experimentally as well as numerically by Børvik et al (2002), Gupta et al (2006;, Iqbal et al (2010a). Børvik et al (2002) carried out the numerical and experimental study on the impact response of 12 mm thick weldox 460 E steel targets struck by a blunt, hemispherical and conical nose shape projectile.…”

Section: Introductionmentioning

confidence: 99%

“…Børvik et al (2002) carried out the numerical and experimental study on the impact response of 12 mm thick weldox 460 E steel targets struck by a blunt, hemispherical and conical nose shape projectile. In continuation to investigate the effect of the nose shape on an aluminum target Gupta et al (2006) conducted experiments on aluminum plates of 1mm thickness with blunt and hemispherical nose projectiles. The ballistic limit velocity was found to be higher for hemispherical projectiles than that for blunt projectiles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Periphery Fixity on Ballistic Limit of Thin Aluminum Plate Subjected to Blunt and Ogival Projectile Impact

Tiwari¹,

Iqbal²,

Gupta³

2014

International Journal of Applied Mechanics and Engineering

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Three-dimensional numerical simulations were carried out with the ABAQUS/explicit finite element code to study the influence of target boundary conditions on its ballistic limit. 1mm thick 1100-H12 aluminum target of 255 mm span diameter was hit by 19 mm diameter and 50.8 mm length blunt nosed projectile. The mass of the projectile was kept as 52.5 gm. The boundary condition effects on the ballistic limit were investigated by varying the target periphery boundary condition as fully clamped and partially clamped target (75%, 50% and 25%) subjected to projectile impact. The energy absorption and ballistic limit of the target was found to be significantly affected by the boundary conditions. Some of the finite element analysis results were compared with experimental and numerical results reported in international literature and a good agreement between the two was found.

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Experimental and numerical studies on the behavior of thin aluminum plates subjected to impact by blunt- and hemispherical-nosed projectiles

Cited by 228 publications

References 11 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

Numerical investigation on ballistic resistance of aluminium multi-layered panels impacted by improvised projectiles

Effect of Periphery Fixity on Ballistic Limit of Thin Aluminum Plate Subjected to Blunt and Ogival Projectile Impact

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