Experimental set-up. Left: projectile with flyer launched. Right: target rack.
(Color online) Free-surface velocity profiles of shot No. 1 and shot No. 2 as recorded by VISAR.
Cross section of “soft-recovered” samples in shot No. 6 and shot No. 8.
x-t diagram for symmetric impact at high pressure.
(Color online) Three velocities change on the free surface particle velocity profile. Circle 1 shows the “slow-fast effect,” circle 2 shows the “fast-slow effect” or “shoulder effect,” and Circle 3 shows the “overshoot effect.”
(Color online) Damage distributions of incompletely spalled samples.
(Color online) The time-based correlation between stress distribution inside the sample and the free surface particle velocity profile. (a) x-t diagram for symmetric impact at high pressure. (b) The stress of the candidate spall plane. (c) The free surface velocity profile of the sample with damage.
(Color online) Two stages of ultrapure aluminum damage evolution and the critical increment point.
Experimental parameters and results for ultrapure aluminum.
Calculation parameters of pure aluminum.
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