Penetration dynamics of steel spheres into a ballistic gelatin: Experiments, nondimensional analysis, and finite element modeling

Ye, S.J.; Xu, Yunfei; Zhou, Y.; Cheng, J.C.; Huang, J.Y.; Cai, Y.; Yao, Xuefeng; Luo, Sheng‐Nian

doi:10.1016/j.ijimpeng.2021.104144

Cited by 10 publications

(2 citation statements)

References 46 publications

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“…It was shown that the Lagrange solver had the highest calculation accuracy and efficiency. Ye et al (2022) conducted dimensionless analysis and a finite element simulation on the penetration of medium-low speed millimeter-level steel balls into ballistic gelatin, which reproduced the experimental observation results well. Shuangshuang et al(2020) developed an original numerical model based on SPH to study the dynamical phenomena during microscale impact of spheres into ballistic gelatin.…”

Section: Introductionmentioning

confidence: 61%

Penetration of ballistic gelatin by explosion-driven inert metal particles

Li,

Yao,

Zhu

et al. 2024

Lat. Am. j. solids struct.

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In urban combat, sub-millimeter inert metal powder is used to replace fragments in explosive bombs, which can effectively reduce collateral damage. In order to investigate the damage effect of high-speed metal particles on the human body, a particle ring filled with a charge was designed to create an explosion-driven particle cloud for the penetration ballistic gelatin. The particle ring was made of polytetrafluoroethylene (PTFE) and sub-millimeter tungsten powder. The dispersion properties of the particle cloud driven by the explosion were studied with high-speed photography and ballistic gelatin. Furthermore, the numerical simulation models of particle-penetrating gelatin based on the experimental results were established with the finite element method. The influences of the particle size and velocity on the penetration depth and cavity diameter was obtained. The relationship between the critical interference distance of the cavity and the distance between particles was determined. This paper provides references and theoretical support for the design of low collateral damage ammunition based on inert metal powder.

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Section: Introductionmentioning

confidence: 61%

Penetration of ballistic gelatin by explosion-driven inert metal particles

Li,

Yao,

Zhu

et al. 2024

Lat. Am. j. solids struct.

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“…According to the types of targets, penetration munitions can be used to target important ground targets such as airport runways, bridges, ground command centers, and communication hubs. They can also effectively strike various underground command centers, missile silos, weapons depots, and underground communication hubs [ 11 ]. They can also strike a variety of maritime targets, including the precision killing of aircraft carrier fleets, frigates, and reef military bunkers [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Structural Design of MEMS Acceleration Sensor Based on PZT Plate Capacitance Detection

Cui,

Chuai,

Huang

et al. 2023

Micromachines

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The problem that the fuze overload signal sticks and is not easily identified by the counting layer during the high-speed intrusion of the projectile is an important factor affecting the explosion of the projectile in the specified layer. A three-pole plate dual-capacitance acceleration sensor based on the capacitive sensor principle is constructed in this paper. The modal simulation of the sensor structure is carried out using COMSOL 6.1 simulation software, the structural parameters of the sensor are derived from the mechanical properties of the model, and finally the physical sensor is processed and fabricated using the derived structural parameters. The mechanical impact characteristics of the model under different overloads were investigated using ANSYS/LS-DYNA, and the numerical simulation of the projectile intrusion into the three-layer concrete slab was carried out using LS-DYNA. Under different overload conditions, the sensor was tested using the Machette’s hammer test and the output signal of the sensor was obtained. The output signal was analyzed. Finally, a sensor with self-powered output, high output voltage amplitude, and low spurious interference was obtained. The results show that the ceramic capacitive sensor has a reasonable structure, can reliably receive vibration signals, and has certain engineering applications in the intrusion meter layer.

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