Analysis of Material Punching Including a Rotational Speed of the Projectile

Abstract

Materials used for the construction of ballistic shields are characterized by a variety of behaviours under the influence of external loads. Ballistic impact (by a bullet) in armour (ballistic shield) is an example of the phenomena that could be considered in the category of a dynamic load caused by the strike of the mass. Computer simulations are commonly used in such situations. It is especially important to adopt a proper model of the behaviour of the material. This paper presents the results obtained by simulating free 3D points and using the application developed by the authors for the purpose of this research. The made calculations include the translational motion and rotary motion of the projectile as well as the stiffness of the material, the damping of the material, friction at the points of contacting surfaces, viscous friction and plastic deformation (the material beyond the plastic yield point is perfectly plastic). The results of simulations were validated with experimental research.

Parametric Identification of the Degenerate Model with a Dissipative-Elastic Element Dispersing Impact Energy

“…The complexity of identification equations for the analysed model required the use of numerical techniques that have been verified experimentally. ballistic experiment (shooting Lim3 ballistic shields using 9 mm FMJ pistol ammunition) using a laser vibrometer [13]. The selected results are shown in Figure 3.…”

Experimental and numerical analysis of aramid fiber laminates with DCPD resin matrix subjected to impact tests

“…Ballistic simulations performed in ABAQUS program were narrowed in order to simplify the numerical model of the projectile, namely, including in the analysis only the core of the projectile and the translation speed, that is, omission of the projectile rotation [14]. Kinetic energy of the projectile was realized by considering the initial speed v0 = 349.6 m/s and the mass of the projectile as 8 g, thus the initial kinetic energy is as 488.9 J.…”