A computational study of segmented tungsten rod penetration into a thick steel target plate at high velocities

2012 ◽  
Author(s):  
Michael B. Presnell ◽  
A. M. Rajendran
Keyword(s):  
Computational Study ◽  
Target Plate ◽  
Steel Target ◽  
Thick Steel

scholarly journals Study on Penetration Performance of Rear Shaped Charge Warhead

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6526
Author(s):  
Yanan Du ◽  
Guanglin He ◽  
Yukuan Liu ◽  
Zhaoxuan Guo ◽  
Zenghui Qiao
Keyword(s):  
Numerical Simulation ◽  
Experimental Verification ◽  
Simulation Method ◽  
Shaped Charge ◽  
Experimental Results ◽  
Target Plate ◽  
Depth Of Penetration ◽  
Steel Target ◽  
Shaped Charge Jet ◽  
Control Cabin

In guided munitions, the shaped charge jet (SCJ) warhead is located behind the simulation compartment (including the control cabin, the steering gear cabin, and the guidance cabin). Therefore, the order of penetration of the SCJ is the simulation cabin and the target. To study the penetration performance of the SCJ to the target plate, the numerical simulation method is used to study the penetration performance of the designed warhead for the steel target at different standoffs, and the depth of penetration (DOP) at the best standoff is obtained, that is, the DOP of the steel target is about 128 mm. Additionally, the penetration performance of the SCJ warhead to target is studied by numerical simulation and experimental verification. Numerical simulation and experimental results show that the DOP of the SCJ warhead to the steel target is 50 mm without the simulation cabin, and about 30 mm with the simulation cabin. The results show that the penetration performance of SCJ is greatly weakened under the condition of non-optimal standoff, but the rear shaped charge warhead still has a strong penetration performance after completing the penetration of the simulated cabin.

Effect of Standoff on Near-Field Blast Mitigation Provided by Water-Filled Containers

2019 ◽  
Vol 86 (7) ◽  
Author(s):  
Huon Bornstein ◽  
Sam Di Placido ◽  
Shannon Ryan ◽  
Adrian C. Orifici ◽  
Adrian P. Mouritz
Keyword(s):  
Simple Technique ◽  
Experimental Testing ◽  
Low Cost ◽  
Near Field ◽  
Blast Mitigation ◽  
Target Plate ◽  
Blast Protection ◽  
Steel Target ◽  
Blast Effects ◽  
Armored Vehicle

Water-filled containers placed externally on an armored vehicle offer a potentially low cost, light-weight, and simple technique to mitigate near-field explosive blast, although the use of a gap or standoff between the container and target has not been studied. This paper uses experimental testing and numerical simulations to characterize the influence of this container standoff on the mitigation of near-field blast effects. The addition of the container standoff was not found to generally increase the blast mitigation effect provided by water-filled containers on the deformation caused to a steel target plate. While the container standoff was found to enhance the spreading and shadowing blast mitigation mechanisms provided by the water-filled container, this was offset by an increase in blast loading due to the container being closer to the explosive charge. A new mitigation mechanism was identified as the time delay between the initial loading of the steel plate by the blast wave and the subsequent impact of water ejected from the container. The results from this work provide engineers guidance into the design of water-filled containers for near-field blast protection of armored vehicles.

Numerical Investigation of Penetration Performance of Segmented Rod Projectiles with Various Connectors

2010 ◽  
Vol 452-453 ◽  
pp. 185-188
Author(s):  
Zong Sheng Cao ◽  
Yun Fei Deng ◽  
Wei Zhang
Keyword(s):  
Numerical Simulations ◽  
Numerical Investigation ◽  
Crater Depth ◽  
Tungsten Alloy ◽  
Design Parameters ◽  
Steel Target ◽  
Thick Steel ◽  
Continuous Rod ◽  
Segmented Rods

In this paper, a series of numerical simulations have been conducted to investigate the penetration performance of tungsten alloy segmented rods with various connectors and different design parameters, and corresponding continuous rod penetrate into semi-infinite thick steel target at velocities from 1.5 km/s to 3.1 km/s. The SPH hydrocode of AUTODYN was used in this paper to reveal the influences of design parameters on the penetration performance of segmented-rod projectiles. A non-ideal segmented rod projectile includes not only segmented rods but also carrier tube and connectors for assembly and integrity purposes. The penetration performance of penetrator is evaluated by examining the crater depth in thick steel targets.

Dynamic Impact Upon Steel Target Plate: Experimental and Theoretical Analysis

1995 ◽  
Author(s):  
Y. F. Al-Obaid
Keyword(s):  
Finite Element ◽  
Theoretical Analysis ◽  
Three Dimensional ◽  
Complete Analysis ◽  
Impact Loads ◽  
Finite Element Analyses ◽  
Target Plate ◽  
Dynamic Impact ◽  
Dynamic Finite Element ◽  
Steel Target

Abstract This paper gives complete analysis of the local failure of steel target plate subjected to shot impact by using three-dimensional dynamic finite element analyses in which provision is made for the simulation of impact loads, plasticity and cracking of steel target. An assessment is made for perforation. Three computer programmes NONSAP, MARC and OBAID have been used for comparison. The analytical results are well compared with those available from a model test.

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