Measurement of the Short-Duration Pulse Shock Initiation Thresholds for TATB Explosive/Adhesive

According to DRM(Delayed Robbins-Monro) experimental procedure,the shock initiation characteristics of TATB/adhesive explosive were studied under different excitations based on the loading technique of short-duration pulse shock wave produced by polyester film flyer driven by metallic foil electrical explosion(electric gun).The short-duration pulse shock initiation thresholds under 50% initiation probability condition were obtained;the short-duration pulse shock initiation criterion of TATB/adhesive explosive under experimental condition was also obtained and expressed as: lnp=0.205-0.87lnτ.These results were compared with the short-duration pulse shock initiation thresholds of TATB/HMX based polymer bonded explosive under the same conditions.Results show that the short-duration pulse shock initiation threshold of the explosive are affected by the flyer area and the loading pulse width,and the TATB/adhesive explosive is more insensitive than the TATB/HMX based polymer bonded explosive.