Design and Development of Customized Helmet for Military Personnel

As a matter of personal and national security, the development of ballistic helmets to defend against attacks from various sources is becoming more and more important. According to research in the military, projectiles that are launched into a soldier’s head are thought to be the cause of about half of their deaths on the battlefield. New threats are always a challenge for the design and manufacture of modern military helmets. The aim of this paper is to discuss the design of the customized helmet based on the size and shape of the head using the photogrammetry method. A human head 3D model is obtained by photogrammetry, and by using the human head model as a reference, a customized helmet is modelled and analysed for various strength criteria. It is found that the deflection of the helmet when a 9 × 19 parabellum bullet strikes it from the side ranges from 0 to 51.68 mm, and the deflection when the bullet strikes from top ranges from 0 to 32.23 mm, which means that the strength of the helmet at the sides is greater than the top portion.