Experimental Study of Constraint Effect on Shaped Charge Jet Penetration in Concrete Targets
约束状态下聚能杆流对混凝土作用的实验研究

Jetting projectile is a kind of shaped charge that can be used as the second part of a tandem warhead system. Two typical shaped charges, hemispherical liner charge (HLC) and K charge (KC), that can form jetting projectile were designed. C35 concrete targets with hole constraints which have different diameters and heights were prefabricated. Experiments were carried out using above charges in predrilled hole and in the air. Experimental results show that all two shaped charges can form jetting projectile, also can form deep holes with reasonable large diameter. Comparing with HLC, the penetration depth of KC is much larger, while the diameter of HLC is much larger. But comparing with the results obtained in the air, the penetration depth of HLC is effected by constraints, while the KC changes present more stability. Above results can provide some evidences for designing second part of tandem warhead system.