Experimental and Numerical Investigation of the Impact of a Blunt Projectile with a Perforated Plate

Subject Areas : Mechanical Engineering

M Farahmand ¹ (Department of Mechanical Engineering , Imam Hossein Comprehensive University, Tehran, Iran)
Kh Vahedi ² (Department of Mechanical Engineering , Imam Hossein Comprehensive University, Tehran, Iran)
A Naddaf Oskouei ³ (Department of Mechanical Engineering , Imam Hossein Comprehensive University, Tehran, Iran)
R Hosseini ⁴ (Department of Mechanical Engineering , Imam Hossein Comprehensive University, Tehran, Iran)

Received: 2021-06-20 Accepted : 2021-08-17 Published : 2021-09-30

Keywords: AISI 52100 Steel Projectile, Impact, Perforated plate, AISI 1045 Steel targets, Projectile deviation, Target,

Abstract :

This paper experimentally and numerically investigated the impact of a blunt projectile to perforated steel targets. In this study, projectiles were made of AISI 52100 and perforated plates were made of AISI 1045. In order to investigate the effect of the hole diameter on the projectile, three different diameters of the hole were considered, along with the effect of the projectile overlap with the hole. After examining different hitting states, the projectile was deviated from its movement direction after hitting the hole and changed from vertical hit to skew. The deviation of the projectile increased when the diameter of the hole increased or the amount of projectile overlap with the hole increased. Then, numerical modeling of impacting the projectile was performed by ABAQUS software and the results were compared with experimental results and the accuracy of the model was confirmed. And this model was used to investigate the effect of initial projectile speed on deviation of the projectile, accordingly, an increase in the initial velocity of the impact led to an increase in the deviation of the projectile.

References:

[1] Auyer R.A., 1991, Perforated Plate Armor, Patent No: 5,014,593.
[2] Ravid M., Hirchberg Y., 2009, Ballistic Armor, Patent No: 7,513,186 B2.
[3] Balos S., Grabulov V. L., Sidjanin B., Pantic A., Radisavljevic I., 2010, Geometry, mechanical properties and mounting of perforated plates for ballistic application, Materials and Design 31: 2916-2924.
[4] Madhu V., Bhat T.B., 2011, Armour protection and affordable protection for futuristic combat vehicles, Defence Science Journal 61(4): 394-402.
[5] Ogorkiewitz R., 1991, Technology of Tanks, Coulsdon: Jane’s Information Group Limited.
[6] Radisavljevic I., Balos S., Nikacevic M., Sidjanin L., 2013, Optimization of geometrical characteristics of perforated plates, Materials and Design 49: 81-89.
[7] Chocron S., Anderson C.E., Grosch D.J., Popelar C.H., 2001, Impact of the 7.62-mm APM2 projectile against the edge of a metallic target, International Journal of Impact Engineering 25: 423-437.
[8] Mishra B., Ramakrishna B., Jena P.K., Siva Kumar K., Madhu V., Gupta N.K., 2013, Experimental studies on the effect of size and shape of holes on damage and microstructure of high hardness armor steel plates under ballistic impact, Materials and Design 43: 17-24.
[9] Rosenberg Z., Ashuach Y., Yeshurun Y., Dekel E., 2009, On the main mechanism for defeating AP projectiles, long rods and shaped charge jets, International Journal of Impact Engineering 36: 588-596.
[10] Kilic N., Bedir S., Erdik A., Ekici B., Demirci A., Güden M., 2014, Ballistic behavior of high hardness perforated armor plates against 7.62 mm armor piercing projectile, Materials and Design 63: 427-438.
[11] Duan C.Z., Dou T., Cai Y.J., Li Y.Y., 2011, Finite element simulation and experiment of chip formation process during high speed machining of AISI 1045 hardened steel, Applied Mechanics and Materials 29-32: 1838-1843.
[12] Pawar S., Salve A., Chinchanikar S., Kulkarni A., Lamdhadeb G., 2017, Residual stresses during hard turning of AISI 52100 Steel: Numerical modeling with experimental validation, 5th International Conference of Materials Processing and Characterization.