Download Free Progress Report On Calculation Of The Detonation Velocities Of Some Pure Explosives Book in PDF and EPUB Free Download. You can read online Progress Report On Calculation Of The Detonation Velocities Of Some Pure Explosives and write the review.

A theoretical and experimental study of the covalance (alpha)-specific volume (V sub 2) relationship which was valid for pure explosives (AD-8032) was made for explosives with inert additives. Graphic comparisons of the results of 3 mixtures with pure TNT indicated an agreement over the mixture range considered. The relationship was used to make ideal thermohydrodynamic calculations for Tritonal, DNT, 60-40 cyclotol, pentolite, 60-40 Tetratol, 80-20 TNT-PETN, and pure NH4NO3. The predicted detonation velocities agreed well with available experimental data. A comparison was made of the calculated values of several TNT-salt mixtures under the assumptions that the NaCl vaporizes to NaCl gas and is inert. Detonation-velocity and pressure data indicated that a negligible amount of salt is vaporized in the salt granulations studied. Calculations of several thermohydrodynamic variables were made for mixtures of RDX and pentolite with salt. Experimental and theoretical detonation velocities were compared for explosives mixed with salt or glass beads. The calculated velocity-density relationships are given for RDX, TNT, and pentolite mixed with salt. The coefficient of compressibility for glass was assumed to be negligible. (See also AD-16379).
A simple, empirical linear relationship between detonation velocity at theoretical maximum density and a factor, F, that is dependent solely upon chemical composition and structure is postulated for a gamut of ideal explosives. The explosives ranged from nitroaromatics, cyclic and linear nitramines, nitrate esters and nitro-nitrato aliphatics to zero hydrogen explosives, carbonless explosives and hydrogen rich explosives. Of the 64 explosives evaluated, 72% had calculated detonation velocity values within 3% of experimental and 95% within 7%. Only mixtures of TNM and NM and TNM itself varied grossly (greater than 20%) from calculated velocities and the absolute error for all explosives is + or - 2.8%. Predicted C-J detonation pressures for 19 explosives had an absolute error of + or - 10% and when TNM was excluded, an absolute error of + or - 6.5%. With the exception of TNM and its mixtures, these results compare favorably with more complex predictive models. (Author).