Numerical and Experimental Study of Multi-layer Armors for Personal Protection


  • Ahmed Ehsan Jassem University of Warith Al-Anbiyaa, Karbala, Iraq
  • Akram Jassim Jawad University of Babylon, Iraq
  • Ahmed Oleiwi Samarmad University of Warith Al-Anbiyaa, Karbala, Iraq
  • Ahmed Fadhil Hamzah University of Babylon, Iraq



Body Armor, the composite system, Ebonite, Shear Thickening Fluids, Ansys


Currently, personal armor is considered the basic requirement in combat, especially in the Middle East. The current research attempts to design and manufacture a novel body armor from cheap and available materials. When compared to traditional materials’ body armor, composite ballistic body armor has become a superior alternative for personal protection. In this study, alternative materials were proposed to develop an armor consisting of modified rubber and ebonite, as well as pieces of ceramic from alumina as hexagons shape, Kevlar and Carbon woven, and modern technologies shear thickening fluids. The armor was numerically evaluated using (ANSYS) commercial software using different bullet velocities ranging from (740 to 940) m/s and different numbers of carbon and Kevlar woven soaking shear thickening fluids to reach the best arrangement of layers with the best performance and compare them in the experimental data. The numerical results show the best performance for plate armor consisting of 23-layers, which were then experimentally tested using a weapon type (AK-47) rifle with bullet 7.62*39 mm. The experimental test showed no complete penetration, with a back deformation of 7.5 mm. When the shock of the double bullet into the plate at the same location showed no complete penetration with a back deformation of 11.3 mm, the body armor exhibited superior protective performance and was compatible with standard NIJ Standard-0101.03.


P.V. Cavallaro, Soft Body Armor : An Overview of Materials, Manufacturing, Testing, and Ballistic Impact Dynamics Naval Undersea Warfare Center Division, vol. 12, no. August. Washington, 2011.

M. J. Decker, C. J. Halbach, C. H. Nam, N. J. Wagner, and E. D. Wetzel, Stab resistance of shear thickening fluid (STF)-treated fabrics, Composites Science and Technology, 67(3–4), 565, (2007);

Y. Regassa, G. Likeleh, and R. Uppala, Modeling and Simulation of Bullet Resistant Composite Body Armor , International Journal of Research Studies in Science, Engineering and Technology, 1(3), 39 (2014);

D.S. Preece and V.S. Berg, Bullet Impact on Steel and Kevlar®/Steel Armor: Computer Modeling and Experimental Data, ASME Pressure Vessels and Piping Conference (2004).

R.G. Egres Jr., C.J. Halbach, M.J. Decker, E.D. Wetzel, and N.J. Wagner, Ballistic and rheological properties of stfs reinforced by short discontinuous fibers, SAMPE 2005:New Horizons for Materials and Processing Technologies, (2005).

K. Mylvaganam and L.C. Zhang, Ballistic resistance capacity of carbon nanotubes, Nanotechnology, 18(47), 475701 (2007); .

M.R. Ahmad, W.Y.W. Ahmad, J. Salleh, and A. Samsuri, Effect of fabric stitching on ballistic impact resistance of natural rubber coated fabric systems, Materials and Design, 29(7), 1353 (2008); .

M. Grujicic and G. Arakere, A ballistic material model for cross-plied unidirectional ultra-high molecular-weight polyethylene fiber-reinforced armor-grade composites, Materials Science and Engineering, 498(1–2), 231 (2008); .

X. Teng, T. Wierzbicki, and M. Huang, Ballistic resistance of double-layered armor plates, International Journal of Impact Engineering, 35(8), 870 (2008); .

H.M. El-Fayad, M.M. Abdel-Wahab, A.A. El-Ashaa, and H.M. Farag, Protection of Honeycomb Sandwich Armours Against the Ballistic Attacks, Aerospace Sciences & Aviation Technology, Asat- 13, 1 (2009).

C.M. Roland, D. Fragiadakis, and R.M. Gamache, Composite Structures, 92(5), 1059 (2010); .

Y. Wang, X. Chen, R. Young, I. Kinloch, and G. Wells, Elastomer–steel laminate armor, Composites Part B: Engineering, 68, 259 (2015); .

S.N. Monteiro, L.H.L. Louro, and W. Trindade, Natural curaua fiber-reinforced composites in multilayered ballistic armor, Metallurgical and Materials Transactions A, 46(10), 4567 (2015); .

A. Fadhil Hamzah, E. Zuheir Fadhel, and M. Baqir Hunain, Experimental and Numerical Investigation of Fatigue Behavior of Chopped GFRP Composite Rod under Rotating Bending Load, International Journal of Engineering and Technology, 6(9), 327 (2016).

J. Pach, D. Pyka, K. Jamroziak, and P. Mayer, The experimental and numerical analysis of the ballistic resistance of polymer composites, Composites Part B: Engineering, 113, 24 (2017); .

M. Bocian, J. Pach, and K. Jamroziak, Experimental and numerical analysis of aramid fiber laminates with DCPD resin matrix subjected to impact tests, MATEC Web of Conferences, 112, 04013, (2017); .

H. Cho, J. Lee, S. Hong, and S. Kim, Bulletproof performance of composite plate fabricated using shear thickening fluid and natural fiber paper, Applied Sciences, 10(1), 88 (2019); .

B.T. Narendiranath, A.P. Singh, N.S. Reddy, and D. Murpani, Simulation of Ballistic Impact on Different Composite Samples of Bullet Proof Vest, IOP Conference Series: Materials Science and Engineering, 1123(1), 012030 (2021); .

F. Alkhatib, E. Mahdi, and A. Dean, Design and evaluation of hybrid composite plates for ballistic protection: experimental and numerical investigations, Polymers (Basel), 13(9), 1450 (2021);

T. Guleria, N. Verma, S. Zafar, and V. Jain, Fabrication of Kevlar®-reinforced ultra-high molecular weight polyethylene composite through microwave-assisted compression molding for body armor applications, Journal of Reinforced Plastics and Composites, 40(7–8), 307 (2021); .

Tang, F., Dong, C., Yang, Z., Kang, Y., Huang, X., Li, M., Chen, Y., Cao, W., Huang, C., Guo, Y. and Wei, Y., Protective performance and dynamic behavior of composite body armor with shear stiffening gel as buffer material under ballistic impact, Composites Science and Technology, 218, 109190 (2022); .

Shah, I.A., Khan, R., Koloor, S.S.R., Petrů, M., Badshah, S., Ahmad, S. and Amjad, M., Finite Element Analysis of the Ballistic Impact on Auxetic Sandwich Composite Human Body Armor, Materials, 15(6), 2064 (2022); .

W.D. Callister, Fundamentals of Materials Science and Engineering: An Interactive, (Fith. John Wiley & Sons,Inc, 2001).

M.F. Aly, I.G.M. Goda, and G.A. Hassan, Experimental Investigation of the Dynamic Characteristics of Laminated Composite Beams, International Journal of Mechanical & Mechatronics Engineering, 10(3), 59 (2010); .

D.W.H. Michael B. Mukasey, Jeffrey L. Sedgwick, The characteristics of systems and their changes of state disperse, Ballistic Resistance of Body Armor :NIJ Standard-0101.06, (7th ed., no. August. Washington, 2008).

National Institute of Justice, Ballistic Resistance of Police Body Armor. NIJ Standard 0101.03, 2008.




How to Cite

Jassem, A. E., Jawad, A. J. ., Samarmad, A. O., & Hamzah, A. F. (2022). Numerical and Experimental Study of Multi-layer Armors for Personal Protection. Physics and Chemistry of Solid State, 23(3), 550–558.



Scientific articles (Technology)