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Submitted
July 29, 2023
Published
July 29, 2023
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Abstract

In modern day warfare, flexible and light weight body armor, which can provide protection to all the parts of body against all kinds of shrapnel and bullets, is required. The best suited material for its application is Kevlar based bullet proof vest and wearable. However situation requires lesser number of Kevlar layers to make the protective layer which will be extremely light and provide flexibility of motion. To achieve this, a non-Newtonian fluid known as Shear Thickening Fluid (STF) is developed, optimum value is obtained for Kevlar-STF combination and the layers of Kevlar are impregnated with STF. Samples of 4, 6 and 8 layers of Kevlar fabrics are bonded together at the edges by epoxy resin and are subjected to impact loading for different speeds. Experiments are conducted till the ballistic limits of the samples and the ballistic limit values are obtained. The energy absorbed, residual velocities and the ballistic limits of the sample are calculated and compared with theoretically calculated values. Experiments are carried for fabrics with and without STF. It is found that there is a substantial increase in the energy absorption of Kevlar with the addition of STF and the study reveals that the STF based impact resistant structures can be better structural armor material with less number of layers and less weight

Keywords

Shear Thickening Fluid, Kevlar Bullet Proof Vest, Impact Absorption, Armor Application

Article Details

How to Cite
Nashikkar, A., Boomurugan, R., Velmurugan, R., Katiyar, A., & Nandi, T. (2023). Impact Performance of Kevlar Fabrics with Shear Thickening Fluid. Journal of Aerospace Sciences and Technologies, 71(3), 289–299. https://doi.org/10.61653/joast.v71i3.2019.150
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References

  1. Asija Neelanchali, et al., "Impact Response of Shear Thickening Fluid (STF) Treated Ultra High Molecular Weight Poly Ethylene Composites-study of the Effect of STF Treatment Method",Thin-Walled Structures,126, 2018, pp.16-25.
  2. Kushan Melih Cemal, et al., "A Novel Approach for Armor Applications of Shear Thickening Fluids in Aviation and Defense Industry", International Scientific Committee, 2014, p.165.
  3. Wagner Norman J. and John F. Brady., "Shear Thickening in Colloidal Dispersions", Physics Today, 62, 10, 2009, pp.27-32.
  4. Wagner, N. and Wetzel, E., "Advanced Body Armor Utilizing Shear Thickening Fluids", 23rd Army Science Conference, Orlando, FL, Vol.3, 2002.
  5. Rangari Vijaya K. et al., "Synthesis of Shear Thickening Fluid Using Sonochemical Method", NSTINanotech, Vol.2, 2006.
  6. Yeh Fang-Yao., Kuo-Chun Chang and Tsung-Wu Chen., "Smart Viscous Dampers Utilizing Shear Thickening Fluids with Silica Nanoparticles", The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, 2012.
  7. Ding Jie, et al., "Review on Shear Thickening Fluids and Applications", 2013, p.161.
  8. Reis Lee., William Archambault and Rachel Sommer., "Impact Resistance of Shear Thickening Fluids Report", University of Rochester, USA, 2009.
  9. Wierzbicki Lukasz, et al., "Shear Thickening Fluids Based on Nanosized Silica Suspensions for Advanced Body Armour", Composites Theory and Practice, 4, 2013, pp.241-244.
  10. Fernando, E. A. S. K. et al., "Design of a Bullet-proof Vest Using Shear Thickening Fluid", International Journal of Advanced Scientific and Technical Research, 1, 5, 2015, pp.434-444.
  11. Decker, M. J. et al., "Low Velocity Ballistic Properties of Shear Thickening Fluid (STF) Fabric Composites", Proceedings of 22nd International Symposium on Ballistics, Vancouver, BC, Canada, Lancaster, PA, DESTech Publications, 2005.
  12. Majumdar Abhijit., Bhupendra Singh Butola and Ankita Srivastava., "Development of Soft Composite Materials with Improved Impact Resistance Using Kevlar Fabric and Nano-silica Based Shear Thicken-
  13. Chen Po-Yun, et al., "Investigation of Shear Thickening Liquid Protection Fibrous Material."World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering, 6, 5, 2012, pp.471-473.
  14. Hoffman, R. L., "Discontinuous and Dilatant Viscosity Behavior in Concentrated Suspensions I Observation of a Flow Instability",Transactions of the Society of Rheology, 16, 1, 1972, pp.155-173.
  15. Bossis Georges and John F. Brady., "The Rheology of Brownian Suspensions", The Journal of Chemical Physics, 91, 3, 1989, pp.1866-1874.
  16. Sikarwar Rahul, S., Raman Velmurugan and Velmuri Madhu., "Experimental and Analytical Study of High Velocity Impact on Kevlar/Epoxy Composite Plates", Central European Journal of Engineering, 2, 4, 2012, pp.638-649.
  17. Morye, S. S. et al., "Modelling of the Energy Absorption by Polymer Composites Upon Ballistic Impact", Composites Science and Technology, 60, 14, 2000, pp.2631-2642.
  18. Balaganesan, G., Velmurugan, R., Srinivasan, M., Gupta, N. K. and Kanny, K., "Energy Absorption and Ballistic Limit of Nanocomposite Laminates Subjected to Impact Loading", International Journal of Impact Engineering,74, 2014, pp.57-66.
  19. Naik, N. K. and Shrirao, P., "Composite Structures Under Ballistic Impact", Composite Structures, 66, 1-4, 2004, pp.579-590.