Experimental study of explosive fragmentation of metals melts

The authors describe the device, techniques and results of study of explosive fragmentation and dispersion of metallic shells after their melting under shock-release wave loading. It was revealed that structures of dispersed and fragmented shells of melted metals (lead and indium) are large-mesh foam structures similar to structures formed at extension of real (low-viscous) liquids. The process of fragmentation and dispersion of shells of melted metals is qualitatively described by the cavitational model of liquid medium fracture with formation of a gas-drop cloud. It is shown that at absence of metals melting in the used tested devices, the shells destruction occurs according to commonly known regularities revealed at high-velocity destruction