Amirkabir University of Technology Amirkabir Journal of Mechanical Engineering 2008-6032 53 12 2022 02 20 A Study on the Ballistic Behavior of Kevlar Fabric Impregnated with Shear Thickening Fluid Containing Graphene Oxide Additive A Study on the Ballistic Behavior of Kevlar Fabric Impregnated with Shear Thickening Fluid Containing Graphene Oxide Additive 5725 5738 4453 10.22060/mej.2021.19806.7119 FA Amirhosein Naghizadeh School of Mechanical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran Hadi Khoramishad School of Mechanical Engineering, Iran University of Science and Technology 0000-0003-2705-0203 Maisam Jalaly Nanotechnology Department, School of Advanced Technologies, Iran University of Science &amp;amp;amp; Technology (IUST), Tehran, Iran 0000-0002-3123-7460 Journal Article 2021 03 31 <span style="letter-spacing: .05pt;">In this research, the effects of graphene oxide as an additive to Kevlar fabric impregnated with nanosilica/polyethylene glycol shear thickening fluid on the ballistic performance were investigated. In order to understand the influence of shear thickening fluid, pull-out tests were accomplished to assess the friction between yarns. The energy absorption in the high-impact ballistic test for the fabric impregnated with shear thickening fluid increased by 25.8% compared to that for the neat Kevlar fabric. This parameter for the fabric impregnated with shear thickening fluid-0.2 wt.% graphene oxide was 23.3% as compared with that of the neat fabric, demonstrating the deteriorating effect of graphene oxide additive. The results of the pull-up tests were in agreement with ballistic tests, meaning that the increase or decrease in the maximum forces in pull-up tests was followed by the increase or decrease in the energy absorption in ballistic tests. Compared to the sample impregnated with shear thickening fluid, adding graphene oxide causes the decrease in the maximum force in the pull-up test, resulting in a reduction in restriction of yarns movement, consequently facilitating their movement inside the fabric.</span> <span style="letter-spacing: .05pt;">In this research, the effects of graphene oxide as an additive to Kevlar fabric impregnated with nanosilica/polyethylene glycol shear thickening fluid on the ballistic performance were investigated. In order to understand the influence of shear thickening fluid, pull-out tests were accomplished to assess the friction between yarns. The energy absorption in the high-impact ballistic test for the fabric impregnated with shear thickening fluid increased by 25.8% compared to that for the neat Kevlar fabric. This parameter for the fabric impregnated with shear thickening fluid-0.2 wt.% graphene oxide was 23.3% as compared with that of the neat fabric, demonstrating the deteriorating effect of graphene oxide additive. The results of the pull-up tests were in agreement with ballistic tests, meaning that the increase or decrease in the maximum forces in pull-up tests was followed by the increase or decrease in the energy absorption in ballistic tests. Compared to the sample impregnated with shear thickening fluid, adding graphene oxide causes the decrease in the maximum force in the pull-up test, resulting in a reduction in restriction of yarns movement, consequently facilitating their movement inside the fabric.</span> https://mej.aut.ac.ir/article_4453_fd95ec8df5dbeea25aa8e6c808bad583.pdf