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Research Paper

Evaluation of Ballistic Performance of Metallic Armor Materials Using Analysis of Variance (ANOVA)

분산분석(ANOVA)을 이용한 금속 재료의 방탄 성능 평가

Min-Je Kim1
,
Ho-un Jin1
,
Yoon Song1
,
Gil Ho Yoon2*
김 민제1
,
진 호언1
,
송 윤1
,
윤 길호2*
1Graduate Student, School of Mechanical Engineering, Hanyang University, Seoul, 04763, Korea
2Professor, School of Mechanical Engineering, Hanyang University, Seoul, 04763, Korea
1한양대학교 기계공학부 석사과정
2한양대학교 기계공학부 교수
*Corresponding Author
28 February 2025. pp. 19-26
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Abstract

When a projectile collides at high speed with metal armor, complex nonlinear deformations and thermo-mechanical interactions develop between the projectile and the armor. This results in significant challenges in evaluating the key properties that govern ballistic resistance. In this study, a statistical analysis of the mechanical properties of metal armor materials is conducted through Analysis of Variance (ANOVA) to assess their impacts on ballistic resistance performance. A finite element model for ballistic impact analysis on metal materials is developed in accordance with NATO standardization using LS-Dyna software. For the impact cases, impact analyses are performed at velocities of 630 m/s under non-penetration conditions and 960 m/s under penetration conditions. ANOVA is applied to each condition to evaluate the effects of the material properties. Experimental points are established using a central composite design based on the base properties of Armox500T. The influence of key mechanical properties of the metal materials on ballistic performance is assessed using a full quadratic surface model, and the interaction effects among properties are also examined through ANOVA.

Keywords
ballistic resistance
ballistic impact analysis
metal armor
ANOVA
Armox500T
fragment simulating projectile

금속 방탄재에 탄환이 고속 충돌 시, 탄환과 방탄재 사이에 복잡한 비선형 변형과 열적-기계적 상호작용이 발생한다. 이로 인해 방탄 성능을 결정하는 주요 물성을 평가하는 것은 매우 어렵다. 본 연구에서는 금속 방탄재의 기계적 물성에 대해 분산분석을 수행하여 방탄성능에 대한 영향성을 통계적으로 확인하였다. LS-Dyna 상용 소프트웨어를 이용하여 금속재료에 대한 탄도 충격 현상 유한요소모델을 구현하였으며, NATO 회원국 간의 표준화 협정 규격에 따른 파편모의탄을 사용하였다. STANAG 4569를 기준으로 비관통 조건에서는 630m/s, 관통조건에서는 960m/s 속도로 충돌해석 수행하였고, 각각에 대한 분산분석을 수행하였다. Armox500T의 기본 물성을 중심점으로 설정한 중심합성계획법을 이용하여 실험점을 배치하였으며, 완전2차 표면모델을 통해 방호 성능을 결정 짓는 금속재료의 주요 기계적 물성에 대한 영향성을 평가하고, 물성 간의 상호작용 효과를 확인하였다.

키워드
방탄
피탄해석
금속 방탄재
분산분석
Armox500T
파편모의탄
References
1

Armor, P.B. (2008) Ballistic Resistance of Personal Body Armor NIJ Standard-0101.04, US Department of Justice: Washington, DC, USA.

2

Børvik, T., Clausen, A.H., Hopperstad, O.S. (2004) Perforation of AA5083-H116 Aluminium Plates with Conical-Nose Steel Projectiles-Experimental Study, Int. J. Impact Eng., 30(4), pp.367~384.

10.1016/S0734-743X(03)00072-1
3

Coufal, V., Křesťan, J., Vnouček, M. (2022) Ballistic Resistance of ARMOX Advance according to NATO Standard AEP-55 STANAG 4569, In IOP Conference Series: Materials Science and Engineering, 1243(1), p.012002.

10.1088/1757-899X/1243/1/012002
4

de Oliveira Braga, F., Bolzan, L.T., Lima Jr, É.P., Monteiro, S.N. (2017) Performance of Natural Curaua Fiber-Reinforced Polyester Composites under 7.62mm Bullet Impact as a Stand-Alone Ballistic Armor, J. Mater. Res. & Technol., 6(4), pp.323~328.

10.1016/j.jmrt.2017.08.003
5

Doddamani, M.R., Kulkarni, S.M. (2012) Instrumented Ballistic Performance of Jute/Epoxy Sandwich with Functionally Graded Rubber Core, Int. J. Mater. Eng. Innov., 3(2), pp.117~138.

10.1504/IJMATEI.2012.046897
6

Flores-Johnson, E.A., Saleh, M., Edwards, L. (2011) Ballistic Performance of Multi-Layered Metallic Plates Impacted by a 7.62-mm APM2 Projectile, Int. J. Impact Eng., 38(12), pp.1022~1032.

10.1016/j.ijimpeng.2011.08.005
7

Garcia-Avila, M., Portanova, M., Rabiei, A. (2015) Ballistic Performance of Composite Metal Foams, Compos. Struct., 125, pp.202~211.

10.1016/j.compstruct.2015.01.031
8

Hallquist, J.O. (2007) LS-DYNA Keyword User's Manual, Livermore Softw. Technol. Corp., 970, pp.299~800.

9

Johnson, G.R. (1983) A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates and High Temperatures, In Proc. 7th Int. Symp. Ballist., The Hague, Netherlands.

10

Judge, R., Yang, Z., Jones, S.W., Beattie, G., Horsfall, I. (2017) Spiral Strand Cables Subjected to High Velocity Fragment Impact, Int. J. Impact Eng., 107, pp.58~79.

10.1016/j.ijimpeng.2017.04.026
11

Khuri, A.I., Mukhopadhyay, S. (2010) Response Surface Methodology, Wiley Interdiscip. Rev.: Comput. Stat., 2(2), pp.128~149.

10.1002/wics.73
12

Kim, K.H., Kim, M.K., Kim, M.J., Shin, M. (2023) Ballistic Analysis and Stacking Sequence of Laminate Plate for Enhancing Bulletproof Performance, J. Comput. Struct. Eng. Inst. Korea, 36(5), pp.331~338.

10.7734/COSEIK.2023.36.5.331
13

MIL-STD, U.M.S. (1997) 662F, V50 Ballistic Test for Armor, US Army Research Laboratory, Weapons & Materials Research Directorate, Aberdeen Proving Ground, MD.

14

Naveen, J., Jawaid, M., Zainudin, E.S., Sultan, M.T., Yahaya, R. (2019) Evaluation of Ballistic Performance of Hybrid Kevlar®/Cocos Nucifera Sheath Reinforced Epoxy Composites, J. Text. Inst., 110(8), pp.1179~1189.

10.1080/00405000.2018.1548801
15

Ranaweera, P., Bambach, M.R., Weerasinghe, D., Mohotti, D. (2023) Ballistic Impact Response of Monolithic Steel and Tri-metallic Steel-Titanium-Aluminium Armour to Nonrigid NATO FMJ M80 Projectiles, Thin-Walled Struct., 182, p.110200.

10.1016/j.tws.2022.110200
16

Srivathsa, B., Ramakrishnan, N. (1997) On the Ballistic Performance of Metallic Materials, Bull. Mater. Sci., 20, pp.111~123.

10.1007/BF02753218
17

Zukas, J.A., Scheffler, D.R. (2000) Practical Aspects of Numerical Simulations of Dynamic Events: Effects of Meshing, Int. J. Impact Eng., 24(9), pp.925~945.

10.21236/ADA384433
Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 38
  • No :1
  • Pages :19-26
  • Received Date : 2024-08-27
  • Revised Date : 2024-10-09
  • Accepted Date : 2024-10-28
  • DOI :https://doi.org/10.7734/COSEIK.2025.38.1.19
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