Numerical study on the optimized thickness of layer configuration against the 7.62 APM2 projectile

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F24%3A10254803" target="_blank" >RIV/61989100:27230/24:10254803 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001204472900001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001204472900001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fmech.2024.1322640" target="_blank" >10.3389/fmech.2024.1322640</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical study on the optimized thickness of layer configuration against the 7.62 APM2 projectile

Popis výsledku v původním jazyce

This study aimed to select suitable materials and optimize the thickness of these materials so that they could prevent the perforation of 7.62-mm AP bullets at 830 m/s impact velocity. A numerical method is used to analyze the impact on layered configurations of Al2O3 and Al 7075-T651 to fulfill this aim. In order to optimize the thickness of the armor, normal impact and angular impact conditions were considered. Initially, a 20-mm Al2O3 front plate with a 20-mm Al 7075-T651 back plate is analyzed for layered configuration. Back plate thickness is reduced in steps to 10 mm such that no plastic deformation is observed on the rear side of the target. For further optimization of weight, the thickness of the Al2O3 plate is reduced to 18 mm. The weight of this configuration is 1.77 kg, and the areal density is 97.22 kg/m2. This configuration is analyzed for target orientations such as 80 degrees, 70 degrees, and 60 degrees. In this analysis, the projectile deformed in a mushroom shape for 90 degrees and 80 degrees target orientations, while for 70 degrees and 60 degrees target orientations, the projectile experienced more damage on the shank part. The most effective configuration with the highest degree of ballistic performance is a layered combination of the 18-mm Al2O3 front plate and 10-mm Al 7075-T651 back plate at 70 degrees target orientation.

Název v anglickém jazyce

Numerical study on the optimized thickness of layer configuration against the 7.62 APM2 projectile

Popis výsledku anglicky

This study aimed to select suitable materials and optimize the thickness of these materials so that they could prevent the perforation of 7.62-mm AP bullets at 830 m/s impact velocity. A numerical method is used to analyze the impact on layered configurations of Al2O3 and Al 7075-T651 to fulfill this aim. In order to optimize the thickness of the armor, normal impact and angular impact conditions were considered. Initially, a 20-mm Al2O3 front plate with a 20-mm Al 7075-T651 back plate is analyzed for layered configuration. Back plate thickness is reduced in steps to 10 mm such that no plastic deformation is observed on the rear side of the target. For further optimization of weight, the thickness of the Al2O3 plate is reduced to 18 mm. The weight of this configuration is 1.77 kg, and the areal density is 97.22 kg/m2. This configuration is analyzed for target orientations such as 80 degrees, 70 degrees, and 60 degrees. In this analysis, the projectile deformed in a mushroom shape for 90 degrees and 80 degrees target orientations, while for 70 degrees and 60 degrees target orientations, the projectile experienced more damage on the shank part. The most effective configuration with the highest degree of ballistic performance is a layered combination of the 18-mm Al2O3 front plate and 10-mm Al 7075-T651 back plate at 70 degrees target orientation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20300 - Mechanical engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Frontiers in Mechanical Engineering - Switzerland

ISSN

2297-3079

e-ISSN

2297-3079

Svazek periodika

10

Číslo periodika v rámci svazku

APR 4 2024

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

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Kód UT WoS článku

001204472900001

EID výsledku v databázi Scopus

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