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In this paper, in order to boost the power of shaped charge, a new type of W-particle/Zr-based amorphous alloy composite liner embedded with a restraining cylinder is designed, which is different from the original shaped charge structure. The inner restraining cylinder divides the charge into two coaxial columns: inner and outer, which changes the flow mode of the material in the liner and improves the utilization rate of explosive charge. For the first time, W-particle/Zr-based amorphous alloy (W/Zr amorphous) was used to replace the traditional copper, enhancing the penetration depth and increasing the aftereffect. Theoretical analysis and numerical simulation show that the new type of liner is feasible with great advantages. The static explosion test shows that the penetration depth of W/Zr amorphous liner is 66.35% higher than that of the copper liner, and the overpressure behind the target is 0.24 MPa. Moreover, the jet is more stable without pestle. This is a new type of composite liner with wide application prospect.

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In order to study the critical ricochet velocity and critical penetration velocity of tungsten alloy rod obliquely penetrating a finite-thickness metal plate, experiment and numerical calculation of tungsten alloy rod impacting on homogeneous armor steel plate with a thickness of 30mm at an angle of 60° were carried out. Compared the experimental and numerical results with the results using models, it is found that, the results of the ricochet models proposed by Tate, Rosenberg and Steven B for semi-infinite thick plate are quite different from those of experiment and numerical calculation, so they can not be applied to the ricochet situation of finite-thickness plate. The critical penetration velocity model proposed by De Marre and Zhao are in good agreement with the numerical and experimental results, which can predict critical penetration velocity of tungsten alloy rod obliquely penetrating a finite-thickness metal plate with large impact angle. The penetration depth of the projectile under the critical ricochet velocity is about 1/3 of the thickness of the target plate, and the angle between the ejection trajectory of the fragments produced by projectile and target plate and projectile penetration trajectory is exactly 90° in the first penetration stage.