PSI - Issue 40

A.M. Ignatova et al. / Procedia Structural Integrity 40 (2022) 185–193

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Ignatova A.M. at al. / Structural Integrity Procedia 00 (2022) 000 – 000

The resulting dependencies are hyperbolic. It is enough that the overall velocity values of individual fragments are due to the difference in their size. Fig. 6 shows the diagrams of the particle-size distribution of the rupture fragments of each of the experiments, and the generalized data are given in Table 1. Since the size of the particles determines their mass, and therefore the initial kinetic energy, the table is supplemented with calculated values of the kinetic energy of the fragments (minimum, maximum, and average). a b

d

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Fig. 4. Diagram of the change in the velocity of rupture fragments of a target made from potassium fluorophlogopite at impact with a steel ball: (a) at a speed of 230 m/s, collision angle of 90°; (b) at a speed of 120 m/s, collision angle of 90°; (c) impact at a speed of 230 m/s, collision angle of 30°; (d) impact at a speed of 120 m/s, collision angle of 30° Based on the analysis of dependencies in Fig. 4, it is established that they are described with the following function: