Perforation resistance of five different high-strength steel plates subjected to small-arms projectiles

Børvik, Tore; Dey, Sumita; Clausen, Arild Holm

doi:10.1016/j.ijimpeng.2008.12.003

Cited by 337 publications

(241 citation statements)

References 34 publications

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“…The main results are also compiled in Table 5, and a monotonic and rather linear increase in ballistic limit velocity with target yield strength is found. Similar results have been obtained for steel targets [18].…”

Section: Numerical Resultssupporting

confidence: 88%

“…The bullet consisted of a brass jacket, lead filler and an ogive-nose, hardened steel core. More information regarding the bullet materials can be found in Børvik et al [18]. Figure 2 describes the components of the nano-scale material model NaMo which is a combined precipitation, yield strength and work hardening model for age-hardening aluminium alloys [5] [6].…”

Section: Methodsmentioning

confidence: 99%

“…[23][24] [25], any strain-rate and temperature dependence of the material response is neglected in the numerical simulations. The constitutive relation and parameters for the bullet material were taken from Børvik et al [18].…”

Section: Constitutive Relationmentioning

confidence: 99%

“…Impact and residual velocities were measured with various optical devices [18], whereas the overall perforation process was captured with a high-speed video camera. By adjusting the ammunition, impact velocities in a range from just below to well above the ballistic limit were obtained.…”

Section: Experimental Validationmentioning

confidence: 99%

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A nano-scale material model applied in finite element analysis of aluminium plates under impact loading

Johnsen

Holmen

Myhr

et al. 2013

Computational Materials Science

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Finite element simulations of AA6070 aluminium plates struck by ogival-nose projectiles are performed. The aluminium plates are 20 mm thick and heat treated to temper O, T4, T6 and T7. A nano-scale material model, consisting of three parts: a precipitation model, a yield-strength model and a work-hardening model, is used to predict the flow-stress curves of the materials at ambient temperature based on the chemical composition of the alloy and the thermal history defined by the heat treatment. Finite element simulations of the perforation process are then carried out using both 3D solid and 2D axisymmetric elements. The numerically-obtained ballistic limit velocities, predicted without any use of data from mechanical tests, are compared with available experimental data and found to be in excellent agreement with the experimental ones for all tempers. The same holds for the predicted residual velocities at striking velocities higher than the ballistic limit.

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Section: Numerical Resultssupporting

confidence: 88%

Section: Methodsmentioning

confidence: 99%

Section: Constitutive Relationmentioning

confidence: 99%

Section: Experimental Validationmentioning

confidence: 99%

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A nano-scale material model applied in finite element analysis of aluminium plates under impact loading

Johnsen

Holmen

Myhr

et al. 2013

Computational Materials Science

Self Cite

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“…The proposed model showed good ability to track the flow behaviour of T24 steel over the entire temperature and strain rate range. A modified version of the Johnson-Cook constitutive relation (the MJC model) was used in research conducted by Børvik et al [23], where perforation of five different steel plates was investigated. Material constants for the steel plates were based on various material tests, and the data for bullets were mainly taken form the literature.…”

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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Modeling Deformation and Failure Under Impact

2016

Applied Impact Mechanics

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Perforation resistance of five different high-strength steel plates subjected to small-arms projectiles

Cited by 337 publications

References 34 publications

A nano-scale material model applied in finite element analysis of aluminium plates under impact loading

A nano-scale material model applied in finite element analysis of aluminium plates under impact loading

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

Modeling Deformation and Failure Under Impact

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