Study On The Shock Wave Sensitivity And The Cook-off Characteristics Of TATB Booster Explosive

With the development of weapons systems and the deterioration of the environment ofwar, as the explosion sequence indispensable booster has an important role in connecting, sothe security of the energy performance of domestic and foreign Insensitive Booster has beenstudied as a priority.TATB Booster containing not only high energy, but also have goodstability and security, so much attention of researchers.This paper studies including TATBenergy Insensitive Booster safety performance are as follows:Use solution—Preparation of an aqueous suspension containing three kinds ofexperiments required TATB Booster.They are:①35%TATB/60%HMX/5%VitonA,②40%TATB/55%HMX/5%VitonAand③45%TATB/50%HMX/5%VitonA.Test measured detonation velocity of detonation velocity,①7830.23m/s,②7772.31m/s,③7719.85m/s, Theoretical calculations of detonation velocity derived,①7921.19m/s,②7868.50m/s,③7815.22m/s,Experiment and calculations are described HMX content increases, thedetonation velocity increases. Small gap test results measured three kinds of explosivescritical partition values,①5.87mm,②5.82mm,③5.68mm. Calculated in accordance with thecorresponding critical initiation pressure shock wave attenuation in plexiglass in formula,①8.77GPa,②8.83GPa,③8.97GPa, TATB show content, the smaller the thickness of theseparator50%initiation, the greater the critical initiation pressure. Thickness of the separatoris defined as10mm, experimental determination, all three samples have been tested to meetthe security requirements Booster. Slow cook-off test measured the reaction temperature,①260.9℃,②267.8℃,③280.3℃, found TATB content increased, the reaction temperature,the heat hardening. Fast cook off test of three samples of reaction temperature, ①304℃,②302℃,③299.4℃, the reaction products of colors from white smoke into theyellow smoke.With AUTODYN-3D on a small partition tests simulated detonation of about5μs RDXexplosives detonated frontier donor after arriving plexiglass partitions, the maximum pressurefor18.2134GPa. Shock pressure attenuation through the rear bulkhead to the main subject ofexplosives, the sample①, When the partition wall thickness5.5mm,8.7μs pressure increases,the pressure will soon reach18.4GPa, to form a stable detonation; When the partition wallthickness5.8mm, In the lower explosive pressure has decayed to2.36GPa, not formed by themain explosive detonation. The sample③, When the partition wall thickness5.7mm,9.86μsform a stable detonation, the pressure reaches18.125GPa; When the thickness is5.95mmpartition,18.23μs pressure has decayed to5.61GPa, no formation of detonation. Aftersimulation found in the growth equation of state parameter G2term impact on the shocksensitivity greater than the detonation item parameters I. Numerical simulation results areconsistent with the actual test cases illustrate the feasibility of the numerical simulation, andcan well reflect the details of the small clapboard trials.