7.2 Impact Test on 10CrNi3MoV21A Armor Steel/SiC Ceramic/UHPCC …
193
Armor steel/ceramic
composite plate
(a)
(b)
Fig. 7.3 UHPCC target a casting process b composite plate embedded in the front
6 mm ceramic/UHPCC, 11 mm ceramic/UHPCC and 5 mm armor steel/6 mm
ceramic/UHPCC composite target. As shown in Fig. 7.4, the cylindrical target was
placed horizontally on the support platform with its front face perpendicular to
the barrel of a 30-mm-caliber smooth bore cannon, which was used to launch the
projectiles with initial velocities V 0 of about 500 m/s. Besides, two layers of tinfoil
connected to an oscilloscope were placed in the straight trajectory of the projectile
to measure the initial striking velocities. The typical impact instants of projectile
were captured by a high-speed camera system and the perpendicular impact can be
identified, as shown in Fig. 7.5. After the test, the projectiles were recovered and the
residual length and mass were measured and recorded in Table 7.5.
30-mm-caliber
smooth bore cannon
Projectile
Tinfoil for V0
Target
Oscilloscope
High speed
camera
30-mm-caliber
smooth bore cannon
Target
Tinfoil
(a)
(b)
Fig. 7.4 Test setup a sketch map b test site
193
Armor steel/ceramic
composite plate
(a)
(b)
Fig. 7.3 UHPCC target a casting process b composite plate embedded in the front
6 mm ceramic/UHPCC, 11 mm ceramic/UHPCC and 5 mm armor steel/6 mm
ceramic/UHPCC composite target. As shown in Fig. 7.4, the cylindrical target was
placed horizontally on the support platform with its front face perpendicular to
the barrel of a 30-mm-caliber smooth bore cannon, which was used to launch the
projectiles with initial velocities V 0 of about 500 m/s. Besides, two layers of tinfoil
connected to an oscilloscope were placed in the straight trajectory of the projectile
to measure the initial striking velocities. The typical impact instants of projectile
were captured by a high-speed camera system and the perpendicular impact can be
identified, as shown in Fig. 7.5. After the test, the projectiles were recovered and the
residual length and mass were measured and recorded in Table 7.5.
30-mm-caliber
smooth bore cannon
Projectile
Tinfoil for V0
Target
Oscilloscope
High speed
camera
30-mm-caliber
smooth bore cannon
Target
Tinfoil
(a)
(b)
Fig. 7.4 Test setup a sketch map b test site