Validation of DSD relations for RDX-TNT-based cast explosives for lower diameters and D_n - κ surface equation

In this paper, we extended our work on RDX and TNT-based explosives to lower diameter to validate detonation shock dynamics (DSD) first-order relationships between normal detonation velocity D_nand detonation wave curvature κ. At 25 mm diameter, we observed that D_n- κ relationship approximates, although not perfectly, the relation for 50 mm diameter. Thus to an approximation, the first order DSD theory is independent of geometry. On that basis, a general equation has been proposed, which can predict D_n- κ for RDX/TNT cast explosives in the mixing ratios 60:40-40:60.