TY - JOUR

T1 - Ballistic resistance of ceramic metallic target for varying layer thicknesses

AU - Khan, M. K.

AU - Iqbal, M. A.

AU - Bratov, V.

AU - Morozov, N. F.

AU - Gupta, N. K.

N1 - Funding Information: Acknowledgements. Authors gratefully acknowledge the financial support provided by the Department of Science and Technology (DST) India and Russian Foundation for Basic Research (RFBR) Russia through research grant nos. INT/RUS/RFBR/P-232, INT/RUS/RFBR/P361 for successfully carrying out this work. Publisher Copyright: © 2021, Peter the Great St. Petersburg Polytechnic University

PY - 2021

Y1 - 2021

N2 - The ballistic behaviour of a bi-layer ceramic-metal target against steel projectile with varying layer thicknesses has been investigated using a three-dimensional finite element model. The bi-layer target was made of alumina 99.5 % ceramic front layer and aluminium 2024-T3 metallic back layer with an areal dimension of 100×100 mm and the thickness of both layers were varied, with the total thickness of the composite being kept as 10 mm and 20 mm. A steel 4340 cylindrical blunt-nosed projectile was used with 30 grams mass and 10.9 mm diameter. The Johnson-Holmquist 2 (JH-2) constitutive model was used for reproducing the high strain behavior of alumina and Johnson-Cook (JC) model was used for aluminium alloy and steel. The impact velocity of the projectile was varied in the range 200-700 m/s for 10 mm total thickness and 500-800 m/s in the case of 20 mm total thickness for studying the effects of thickness ratios on ballistic resistance of the bi-layer target. The residual velocities were compared and the ratio of front to back layer providing the highest ballistic limit velocity was found for both cases.

AB - The ballistic behaviour of a bi-layer ceramic-metal target against steel projectile with varying layer thicknesses has been investigated using a three-dimensional finite element model. The bi-layer target was made of alumina 99.5 % ceramic front layer and aluminium 2024-T3 metallic back layer with an areal dimension of 100×100 mm and the thickness of both layers were varied, with the total thickness of the composite being kept as 10 mm and 20 mm. A steel 4340 cylindrical blunt-nosed projectile was used with 30 grams mass and 10.9 mm diameter. The Johnson-Holmquist 2 (JH-2) constitutive model was used for reproducing the high strain behavior of alumina and Johnson-Cook (JC) model was used for aluminium alloy and steel. The impact velocity of the projectile was varied in the range 200-700 m/s for 10 mm total thickness and 500-800 m/s in the case of 20 mm total thickness for studying the effects of thickness ratios on ballistic resistance of the bi-layer target. The residual velocities were compared and the ratio of front to back layer providing the highest ballistic limit velocity was found for both cases.

KW - Ballistic limit velocity

KW - Ballistic resistance

KW - Ceramic-metallic target

UR - http://www.scopus.com/inward/record.url?scp=85115093957&partnerID=8YFLogxK

U2 - 10.18149/MPM.4722021_1

DO - 10.18149/MPM.4722021_1

M3 - Article

AN - SCOPUS:85115093957

VL - 47

SP - 159

EP - 169

JO - ФИЗИКА И МЕХАНИКА МАТЕРИАЛОВ

JF - ФИЗИКА И МЕХАНИКА МАТЕРИАЛОВ

SN - 1605-8119

IS - 2

ER -