Auxetic materials and structures for potential defense applications

Abstract

An auxetic material exhibits exceptional features compared to conventional material. It gets broadened when it is stretched or becomes smaller when it is compressed because it has a negative Poisson’s ratio. Moreover, auxetic materials possess some enhanced properties, such as shear resistance, indentation resistance, fracture toughness, energy absorption, etc. These enhanced properties make the auxetic materials very attractive for many potential applications. This paper reviews the latest advances in research work in structures, mechanical properties, the manufacturing methods of auxetic materials used for defense applications, including armor systems. The results obtained here serve as additional guidelines to assist engineers and designers in the use of auxetic materials for military personnel protective clothing.