The penetration of steel targets finite in radial extent

Littlefield, David L.; Anderson, Charles E.; Partom, Yehuda; Bless, Stephan

doi:10.1016/s0734-743x(96)00001-2

Cited by 49 publications

(42 citation statements)

References 14 publications

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“…Ballistic tests were performed on the targets composed of alumina tiles bonded to a composite plate with and without an interlayer (Fig. 1a) ) and aluminum metallic foam with a density of 0.438 g/cm 3 . After the test the fracture pattern of the ceramic layer and the damage generated in the composite plate were investigated.…”

Section: Methodsmentioning

confidence: 99%

The effect of the interlayer on the ballistic performance of ceramic/composite armors: Experimental and numerical study

Taşdemirci

Tunusoğlu

Güden

2012

International Journal of Impact Engineering

132

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a b s t r a c tThe effect of rubber, Teflon and aluminum foam interlayer material on the ballistic performance of composite armor was investigated both experimentally and numerically. Although, rubber interlayer did not cause any significant delay in the initial stress build-up in the composite layer, Teflon and aluminum foam interlayer caused a significant delay and reduction in the magnitude of the stress transmitted to the composite backing plate. Damage in the ceramic layer was found to be highly localized around the projectile impact zone for the configuration without interlayer and rubber interlayer while aluminum foam and Teflon interlayer spread the damage zone in the radial direction. Relatively large pieces of the ceramic around the impact axis in the rubber interlayer configuration were observed while the ceramic layer was efficiently fragmented in aluminum foam and Teflon interlayer configuration.

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Section: Methodsmentioning

confidence: 99%

The effect of the interlayer on the ballistic performance of ceramic/composite armors: Experimental and numerical study

Taşdemirci

Tunusoğlu

Güden

2012

International Journal of Impact Engineering

132

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“…Geometries of the targets and bullet were similar to those used in the tests except the target was modelled somewhat smaller than in the test to save computational time. Rosenberg et al [30] and Littlefield et al [31] found that the diameter of plate should be at least 15 times larger than the projectile diameter in order to avoid lateral release effects. The target was also modelled as clamped along one boundary.…”

Section: Numerical Modelsmentioning

confidence: 99%

On the Influence of Fracture Criterion on Perforation of High-Strength Steel Plates Subjected to Armour Piercing Projectile

Tria

Trȩbiński

2015

Archive of Mechanical Engineering

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This paper presents a numerical investigation of fracture criterion influence on perforation of high-strength 30PM steel plates subjected to 7.62×51 mm Armour Piercing (AP) projectile. An evaluation of four ductile fracture models is performed to identify the most suitable fracture criterion. Included in the paper is the Modified Johnson-Cook (MJC) constitutive model coupled separately with one of these fracture criteria: the MJC fracture model, the Cockcroft-Latham (CL), the maximum shear stress and the constant failure strain models. A 3D explicit Lagrangian algorithm that includes both elements and particles, is used in this study to automatically convert distorted elements into meshless particles during the course of the computation. Numerical simulations are examined by comparing with the experimental results. The MJC fracture model formulated in the space of the stress triaxiality and the equivalent plastic strain to fracture were found capable of predicting the realistic fracture patterns and at the same time the correct projectile residual velocities. However, this study has shown that CL one parameter fracture criterion where only one simple material test is required for calibration is found to give good results as the MJC failure criterion. The maximum shear stress fracture criterion fails to capture the shear plugging failure and material fracture properties cannot be fully characterized with the constant fracture strain.

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“…Empirical constants and were consistently reported from previous studies [15][16][17][18] to be 0.014 and 0.26, respectively, and were adopted for the current study. and were obtained utilizing quasi-static tension test data reported by Chen [20] and were selected by curve fitting equation (2) to true stress-effective plastic strain curves from these tension tests using the least squares method.…”

Section: Numerical Programmentioning

confidence: 99%

Numerical Simulations of Dynamic Behavior of Polyurea Toughened Steel Plates under Impact Loading

Chen

Linzell

2014

Journal of Computational Engineering

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The objective of the work discussed herein is to develop a nonlinear 3D finite element model to simulate dynamic behavior of polyurea toughened steel plates under impact loading. Experimental and numerical work related to model development are presented. Material properties are incorporated into numerical models to account for strain-rate effects on the dynamic behavior of polyurea and steel. One bare steel plate and four polyurea toughened steel plates were tested under impact loading using a pendulum impact device. Displacement time-history data from experimental work was used to validate the numerical models. Details on material model construction, finite element model development, and model validation are presented and discussed. Results indicate that the developed numerical models can reasonably predict dynamic response of polyurea toughened steel plates under impact loading.

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The penetration of steel targets finite in radial extent

Cited by 49 publications

References 14 publications

The effect of the interlayer on the ballistic performance of ceramic/composite armors: Experimental and numerical study

The effect of the interlayer on the ballistic performance of ceramic/composite armors: Experimental and numerical study

On the Influence of Fracture Criterion on Perforation of High-Strength Steel Plates Subjected to Armour Piercing Projectile

Numerical Simulations of Dynamic Behavior of Polyurea Toughened Steel Plates under Impact Loading

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