Research Article

Antipenetration Performance of Honeycomb Shelter under Two Repeat Projectile Strikes

Table 4

Test results.

Target numberυ1, υ2 (m/s)Target failure description

HST1377.9Front surface: obvious funnel pit is observed and the damage area is about 374 cm2; one of the projectiles does not penetrate the target; cracks and other damages are not observed in other cells
782.3Rear surface: obvious funnel pit is observed and the damage area is about 385 cm2; cracks and other damages are not observed in other cells

HST2318Front surface: obvious funnel pit is observed and the damage area is about 390 cm2; cracks and other damages are not observed in other cells
691.8Rear surface: obvious funnel pit is observed and the damage area is about 380 cm2; cracks and other damages are not observed in other cells

RCT1354.7Front surface: obvious funnel pit is observed and the damage area is about 2830 cm2; There are 6 obvious cracks
782.0Rear surface: obvious funnel pit is observed whose depth is 9 cm and the damage area is about 4300 cm2; there are 17 obvious cracks