Studying normal perforation of monolithic and layered steel targets by conical projectiles with SPH simulation and analytical method

Xiao, Yihua; Dong, Huanghuang; Zhang, Jianmin; Wang, Jungang

doi:10.1016/j.enganabound.2016.11.004

Cited by 22 publications

(6 citation statements)

References 38 publications

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“…The particle density is calculated through the continuity equation, which is needed for the two remaining conservation equations. In evaluating the mass density interaction between a particular particle pair, notated as a − b, the continuity equation can be represented as the time rate of change of mass density shown in Equation (24). A subscript a denotes the properties at the particle of interest, and a subscript b denotes the properties at another particle within the field.…”

Section: Smoothed Particle Hydrodynamicsmentioning

confidence: 99%

“…The authors later introducing a normalized smoothing function into their algorithm which scoped the region of particle interaction within a coupled FEM-SPH model [19]. More recently, SPH modeling techniques have expanded into simulation of hypervelocity impact [20,21], penetration of ballistic gelatin [22,23], perforation of layered targets [24], and use of granular media [25,26]. Much of this work has remained in twodimensional space as the computational requirements for modeling in three-dimensions are still high.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Simulation Techniques Used in High Strain Rate Projectile Impact

2021

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A series of computational models and simulations were conducted for determining the dynamic responses of a solid metal projectile impacting a target under a prescribed high strain rate loading scenario in three-dimensional space. The focus of this study was placed on two different modeling techniques within finite element analysis available in the Abaqus software suite. The first analysis technique relied heavily on more traditional Lagrangian analysis methods utilizing a fixed mesh, while still taking advantage of the finite difference integration present under the explicit analysis approach. A symmetry reduced model using the Lagrangian coordinate system was also developed for comparison in physical and computational performance. The second analysis technique relied on a mixed model that still made use of some Lagrangian modeling, but included smoothed particle hydrodynamics techniques as well, which are mesh free. The inclusion of the smoothed particle hydrodynamics was intended to address some of the known issues in Lagrangian analysis under high displacement and deformation. A comparison of the models was first performed against experimental results as a validation of the models, then the models were compared against each other based on closeness to experimentation and computational performance.

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Section: Smoothed Particle Hydrodynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation Techniques Used in High Strain Rate Projectile Impact

2021

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“…The research centered on analysing monolithic and layered panels fabricated using Weldox 460 E Steel as the selected material [36]. The projectile utilized in the study was of a conical configuration, and computational simulations were performed using the Smoothed Particle Hydrodynamics (SPH) method.…”

Section: Introductionmentioning

confidence: 99%

Simulation-Based Evaluation of Alumina and Weldox Steel Panels Against National Institute of Justice Type IV Ballistic Threats

Maulana,

Ubaidillah,

Dewi

et al. 2024

ACSM

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This study sought to evaluate several panel configurations consisting of Alumina and Weldox 460 E Steel with the objective of advancing our comprehension of ballistic performance and impact resistance. The crucial parameters of Velocity Ballistic Limit (Vbl), depth of penetration (DOP), Deflection, and the deformation of projectiles and panels were thoroughly and rigorously investigated. The present study expands upon the existing body of research, drawing upon the groundwork established by previous studies. The validation is achieved by conducting a comparative analysis of our findings in relation to the previous researcher. In order to carry out these extensive simulations, we utilised the finite element method, explicitly employing the ANSYS/Explicit Dynamic solver AUTODYN and implementing a simplified 2D Axisymmetric model. A series of ballistic experiments were conducted using various combinations of Alumina and Weldox 460 E steel panels, covering a wide range of bullet velocities. Our analysis focused on seven-panel combinations, namely WL12, AL5+WL5, AL5+WL10, AL10+WL5, AL10+WL10, AL12+WL12, and AL15+WL15, each of which was distinct from the others. The results obtained from our calculations indicate that both the AL12+WL12 and AL15+WL15 panel configurations have met the stringent requirements of the National Institute of Justice (NIJ) Type IV standard in terms of their ability to withstand projectiles. The AL12+WL12 configuration demonstrated a depth of penetration (DOP) of 23 mm, a deflection of 4.3 mm, and a Velocity Ballistic Limit (Vbl) of 954.68m/s. The AL15+WL15 arrangement demonstrated notable performance, with a DOP of 21 mm, a deflection of 1.4 mm, and an impressive Vbl of 1345.9m/s, which stands in stark contrast to other configurations. The results of our investigation highlight the exceptional performance of the AL15+WL15 panel configuration in resisting NIJ Type IV bullets, thus solidifying its position as the most optimal selection.

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“…Projectiles with a conical shape can penetrate both materials. Using the material Weldox 460 E steel, Xiao et al [9] investigated monolithic and layered panels. Conical projectiles with SPH simulation and analytical techniques are used.…”

Section: Introductionmentioning

confidence: 99%

Ballistic Performance Anti-Projectile Of Alumina And Weldox 460 E with Finite Element Method

Pratiwi

Riyadi

Setiadhi

et al. 2023

CERIE

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This research aims to determine the effect of the panel configuration which has the strongest resistance and to analyze the ballistic toughness of the Al2O3 and Weldox 460 E Steel panel configurations. The criteria to be looked for are the Depth of Penetration, Deflection and Final Projectile Length. To determine the accuracy of this study, a verification of the simulation research previously conducted by Dey et al. The method used is based on simulation with the finite element method. The software used is ANSYS/Explicit Dynamic solver AUTODYN 18.1. The modeling used in this study is simplified into 2D Axisymmetric. Alumina and Weldox 460 E steel panel configuration variations that will be used in this study. There are 7 variations of the panel configuration used, namely B12, A5B5, A5B10, A10B5, A10B10, A12B12 and A15B15. Alumina material as the front panel, while Weldox 460 E as the back panel. In calculating the mechanical behavior of the material, while the Alumina material uses the Johnson Holmquist (JH2) Strength parameter. And then, the Weldox 460 E material uses Johnson and Cook parameters. The results obtained indicate that the A12B12 and A15B15 panel configurations are able to withstand projectiles. The A12B12 panel configuration has a depth of penetration value of 23 mm, a deflection value of 4.3 mm and a Vbl value of 954.69 m/s. while the best panel configuration is A15B15 with a depth of penetration value of 21 mm, a deflection value of 1.4 mm and a Vbl value of 1345.9 m/s. then the conclusion of this study shows that the A15B15 panel configuration is the best panel configuration that is able to withstand projectiles.

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Studying normal perforation of monolithic and layered steel targets by conical projectiles with SPH simulation and analytical method

Cited by 22 publications

References 38 publications

Modeling and Simulation Techniques Used in High Strain Rate Projectile Impact

Modeling and Simulation Techniques Used in High Strain Rate Projectile Impact

Simulation-Based Evaluation of Alumina and Weldox Steel Panels Against National Institute of Justice Type IV Ballistic Threats

Ballistic Performance Anti-Projectile Of Alumina And Weldox 460 E with Finite Element Method

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