Abstract:
This paper presents a comprehensive approach to simulating the hydrodynamic behavior of full-size aimable fragmenting warheads using the 3D hydrocode AUTODYN. The study integrates CAD-based design, stereolithographic prototyping, and advanced Lagrangian hydrodynamic simulation to model warhead geometries with hundreds of discrete fragments. Simulations capture the detonation-driven fragmentation and high-speed fluid-structure interactions, emphasizing how changes in initiation point configuration and casing geometry shape the distribution, velocity, and interaction of fragments. Hydrodynamic modeling plays a central role in resolving fragment convergence, deformation, and jet formation, which are validated against experimental data. This integrated simulation framework supports parametric studies and performance optimization in complex explosive systems.
