Effect of High Hardness Armor Plate Sequences on Ballistic Impact Response

다국어 초록 (Multilingual Abstract)

In this study, a numerical analysis on the impact response of HHA (High Hardness Armor Plate) sequences under a 7.62 mm projectile impact was performed to obtain the fundamental design data for a combat-vehicle platform. Recently, the ballistic-protection levels for combat vehicles have increased, and ballistic-protection designs should now be able to deflect multi-hit projectiles. To study the ballistic-impact characteristics, armor-plate sequences of one or two layers with a gap of 0 mm to 2 mm between the front and rear plate were defined under the same weight and thickness. For the certification of the reliability of the numerical model, ballistic tests and an analysis of the single plate under the 7.62 mm projectile impact were performed and analyzed. On the basis of a valid numerical model, a numerical analysis was performed and analyzed. Lastly, it was proved that the performances of the two-layer sequence with the 2 mm gap regarding the impact-response acceleration, deflection efficiency, and penetration depth are the highest.

참고문헌 (Reference)

1 Bobbili, R., "The Effect of Impact Velocity and Target Thickness on Ballistic Performance of Layered Plates Using Taguchi Method" 53 : 719-726, 2014

2 Yuen, S., "Response of V-Shape Plates to Localized Blast Load : Experiments and Numerical Simulation" 46 : 97-109, 2012

3 Borvik, T., "Perforation Resistance of Five Different High-Strength Steel Plates Subjected to Small-Arms Projectiles" 36 (36): 948-964, 2009

4 Niezgoda, T., "On the Numerical Methods and Physics of Perforation in the High-Velocity Impact Mechanic" 414-417, 2010

5 Vo, T. P., "Modelling of the Low-Impulse Blast Behavior of Fibre-Metal Laminates Based on Different Aluminum Alloys" 44 (44): 141-151, 2013

6 Gailly, B. A., "Modelling of Failure Mode Transition in Ballistic Penetration with a Continuum Model Describing Microcracking and Flow of Pulverized Media" 54 (54): 365-398, 2002

7 Abdel-Kader, M., "Mild Steel Plates Impacted by Hard Projectiles" 99 (99): 57-71, 2014

8 Livermore Software Technology Corporation (LSTC), "LSDYNA Keyword User’s Manual Vol. 1"

9 Mahfuz, H., "Investigation of High-Velocity Impact on Integral Armor Using Finite Element Method" 24 (24): 203-217, 2000

10 Zukas, J. A., "Impact Dynamics" Wiley 39-45, 1982

11 Jiang, L., "High Rotating Speed Projectile Penetrating into Moving Vehicle Door at Different Incident Angle" 55 (55): 113-117, 2011

12 Kılıç, N., "Ballistic Resistance of High Hardness Armor Steels Against 7. 62 mm Armor Piercing Ammunition" 44 : 35-48, 2013

13 Flores-Johnson, E. A., "Ballistic Performance of Multi-Layered Metallic Plates Impacted by a 7. 62 mm APM2 Projectile" 38 (38): 1022-1032, 2011

14 Kurtaran, H., "Ballistic Impact Simulation of GT Model Vehicle Door Using Finite Element Method" 40 (40): 113-121, 2003

15 Jena, P., "An Experimental Study on the Ballistic Impact Behavior of Some Metallic Armor Materials Against 7. 62 mm Deformable Projectile" 31 (31): 3308-3316, 2010

16 Gama, B., "Aluminum Foam Integral Armor : a New Dimension in Armor Design" 52 (52): 381-395, 2001

17 Espinosa, H. D., "A Numerical Investigation of Penetration in Multi-Layered Material/Structure Systems" 35 (35): 2975-3001, 1998

18 Johnson, G., "A Constitutive Model and Data for Metals Subjected to Large Strain, High Strain Rates and High Temperatures" 541-547, 1983

19 Fernandez-Fdz, D., "A Constitutive Equation for Ceramic Materials Used in Lightweight Armors" 89 (89): 2316-2324, 2011