PSI - Issue 32

A.M. Ignatova et al. / Procedia Structural Integrity 32 (2021) 79–86 Author name / StructuralIntegrity Procedia 00 (2019) 000 – 000

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distributions of fragments in non-constrained and constrained impact conditions. The established trait of behavior suggests that at identical conditions of impact loading, constrained conditions facilitate greater localization of deformation than conditions without lateral compression. At the macroscopic level, it leads to lesser degree of damage and absence of macroscopic fragmentation in presence of major fractures. a b

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Fig. 7. Distribution of destruction fragments by size: ( а ) samples destroyed in non-constrained conditions, (b) samples destroyed in constrained conditions; 1 –at a velocity of 230 m/s, collision angle 90º; 2 – at a velocity of 120 m/s, collision angle 90 º; 3 – at a velocity of 230 m/s, collision angle 30º; 4 – at a velocity of 120 m/s, collision angle 30 º . a b

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Fig. 8. Distribution of destruction fragments by sphericity coefficient: ( а ) samples destroyed in non-constrained conditions, (b) samples destroyed in constrained conditions; 1 – at a velocity of 230 m/s, collision angle 90º; 2 – at a velocity of 120 m/s, collis ion angle 90 º; 3 – at a velocity of 230 m/s, collision angle 30º; 4 – at a velocity of 120 m/s, collision angle 30 º .