Threshold impact velocity for detonation initiation in high-density TATB explosive by flyer

The experiments and the numerical simulations were carried out to investigate the characteristics in the initiation process of the TATB explosive by flyers. The initiation sequence was designed to initiate the high-density TATB explosive. The all-fiber displacement interferometer system for any reflector was used to measure the flyer velocities for the success and failure of the initiation in the TATB explosive, respectively. So the corresponding threshold flyer velocity was determined primarily. And the DYNA2D program was employed to simulate the detonation process of the TATB explosive initiated by the flyer. The simulated results are consistent with the experiments.