Theoretical Model of Radial Scattering Velocity of Fragments of the Reactive Core PELE Projectile

Lee, Ding; Ran, Xianwen; Tang, Wenhui; Xue, Xiaoguang; Zhao, Yuli

doi:10.3390/sym12071190

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…Among these, metal/polymer mixtures, exemplified by PTFE/Al, have gained prominence due to their capability to react in oxygen-free environments [13,14]. PTFE/Al reactive materials have found versatile applications in various fields, including fragments [15][16][17], shaped charge liners [18][19][20][21], PELE (Penetrator with Enhanced Lateral Effects) projectiles [22,23], propellants [24], and even Whipple shield [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

An approach to distinguish chemical and kinetic energy of reactive materials: PTFE/LiF as an inert substitute to PTFE/Al

Zhou,

Zhao,

Wang

et al. 2024

Propellants Explo Pyrotec

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To distinguish between the kinetic and chemical contributions in the impact of PTFE/Al, this study explores the feasibility of introducing an inert substitute for PTFE/Al by substituting aluminum (Al) with inert materials. Three specimens were fabricated through a process involving mixing, compression, and sintering of raw materials The mechanical properties of these specimens were assessed. Dynamic fragmentation tests of PTFE/Al and PTFE/LiF specimens were performed. These results further substantiate the potential of PTFE/LiF as an inert alternative to PTFE/Al, the two materials exhibit comparable fragmentation distribution characteristics. A preliminary exploration of the energy release in both materials was conducted via vented chamber calorimetry tests. The findings reveal that, at an impact velocity of roughly 650 m/s, only 66.9 % of the materials were deposited into the chamber, with a mere 17.8 % being initiated, about 88.9 % of the total deposited energy results from the chemical reaction energy within the PTFE/Al materials. Importantly, this method demonstrates promise for further application in energy release analysis experiments for various PTFE/Al‐based reactive materials. These findings are beneficial for evaluating the energy release characteristics of reactive fragments on typical targets and lay the foundation for refining energy release models of such materials in future research.

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Section: Introductionmentioning

confidence: 99%

An approach to distinguish chemical and kinetic energy of reactive materials: PTFE/LiF as an inert substitute to PTFE/Al

Zhou,

Zhao,

Wang

et al. 2024

Propellants Explo Pyrotec

View full text Add to dashboard Cite

show abstract

Impact-induced energy release and damage effect of reactive materials in air and argon environments

Zhou,

Wang,

Zhao

et al. 2024

AIP Advances

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To investigate the impact of energy release of reactive material on its damage effect, a modified test chamber was developed to conduct vented chamber tests and penetration tests in both air and argon environments of Al/Ti and Al/TI/W reactive projectiles. The deformation volumes obtained from the scanning results were employed to characterize the damage effect of the reactive materials on multi-spaced plate targets. Several key results include the following: Despite its lower energy density, the Al/Ti/W composite exhibits higher energy release efficiency than the Al/Ti composite. This is attributed to the lower strength of the material, causing it to fragment into finer debris upon impact, thereby facilitating easier ignition and reaction. The Al/Ti/W projectiles induce a significant deformation volume in the plates during penetration tests but exhibit a decrease in penetrative capacity. This phenomenon is attributed to the mechanical characteristics of the Al/Ti/W materials rather than the energy release upon impact. The deflagration of reactive materials during impact does not significantly enhance the structural damage of the target, at least at impact velocities below 1200 m/s.

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A novel calculation and simulation method on missile killing effect

Hou

Zhu

et al. 2022

Int. J. Model. Simul. Sci. Comput.

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To accurately describe the killing effect of missiles especially dealing with the small or fast target, a new method for calculating the killing effect of missiles is proposed in this paper. The missile and the target are divided into several basic geometries based on their shapes, and then the equations of these geometries are established in their local frame. The mass center motion equations of the target and the missile are determined in the light of their initial positions and velocities, respectively, and every geometry moves with its center of mass according to its attitude. The equations of the fuze view field and the target can confirm whether the fuze detects the target, and whether the fragment hit the target can be certified by the same approach. This paper also writes a MATLAB simulation program for this calculation method and designs a new algorithm to determine the position relationship of space geometry using existing functions, and the simulation verifies the effectiveness of this method.

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Theoretical Model of Radial Scattering Velocity of Fragments of the Reactive Core PELE Projectile

Cited by 4 publications

References 15 publications

An approach to distinguish chemical and kinetic energy of reactive materials: PTFE/LiF as an inert substitute to PTFE/Al

An approach to distinguish chemical and kinetic energy of reactive materials: PTFE/LiF as an inert substitute to PTFE/Al

Impact-induced energy release and damage effect of reactive materials in air and argon environments

A novel calculation and simulation method on missile killing effect

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