PSI - Issue 41

A.M. Ignatova et al. / Procedia Structural Integrity 41 (2022) 589–597 595 Ignatova A.M., Yudin M.V., Voronov V.L, Ignatov M.N., Gladky I.L., Inozemtsev A.A., Naimark O.B./ Structural Integrity Procedia 00 (2019) 000–000 7 Ignatova A.M., Yudin M.V., V r nov V.L, Ignatov M.N., Gladky I.L., v A.A., Naimark O.B./ Structural Integrity Procedia 00 (2019) 0 –000 7

Table 1. Parameters of fracture fragments. Table 1. Parameters of fracture fragments.

1. Impactor velocity, m/s

2. Collision angle, ͦ

3. Average fragment size, mm 3. Average fragment size, mm

4. Minimum fragment size, mm 4. i i frag ent size,

5. Maximum fragment size, mm 5. Maximum fragment size, mm

6. Kinetic energy of fragments, J 6. Kinetic energy of fragments, J

1. Impactor velocity, m/s

2. Collision angle, ͦ

7. 230

8. 90

9. 3.47

10. 2.37 16. 1.80 22. 2.75 28. 3.08 10. 2.37 16. 1.80 22. 2.75 28. 3.08

11. 5.09 17. 3.03 23. 4.31 29. 5.15 11. 5.09 17. 3.03 23. 4.31 29. 5.15

12. 27-78 18. 24-45 24. 52-81 30. 17-24

7. 230

8. 90

9. 3.47

12. 27-78 18. 24-45 24. 52-81 30. 17-24

13. 120 19. 230 25. 120

14. 90 20. 30 26. 30

15. 2.36 21. 3.37 27. 3.99

13. 120 19. 230 25. 120

14. 90 20. 30 26. 30

15. 2.36 21. 3.37 27. 3.99

1,4

1,4

1,2

1,2

1

1

0,8

0,8

0,6

ln(t)

0,6

ln(t)

0,4

0,4

0,2

0,2

0

2,5

3

3,5

4

4,5

0

3,5 ln(V) ln(V)

2,5

3

4

4,5

1

2

3

4

1

2

3

4

Fig. 6. Change in velocity of fracture fragments of potassium fluorphlogopite targets following an impact with a steel ball: 1 – at a velocity of 230 m/s, collision angle 90º; 2 – at a velocity of 120 m/s, collision angle 90º; 3 – at a velocity of 230 m/s, collision angle 30º; 4 – at a velocity of 120 m/s, collision angle 30º. Fig. 6. Change in velocity of fracture fragments of potassium fluorphlogopite targets following an impact with a steel ball: 1 – at a velocity of 230 m/s, collision angle 90º; 2 – at a velocity of 120 m/s, collision angle 90º; 3 – at a velocity of 230 m/s, collision angle 30º; 4 – at a velocity of 120 m/s, collision angle 30º.