Influence of Various Process Parameters on Mechanical Properties and Ballistics of Nitramine-Based Advanced CMDB Propellants

  • S. N. Asthana Explosives Research & Development Laboratory, Pune
  • S. R. Gore Explosives Research & Development Laboratory, Pune
  • M. V. Vaidya Explosives Research & Development Laboratory, Pune
  • K. Venkatesan Explosives Research & Development Laboratory, Pune
  • P. G. Shrotri Explosives Research & Development Laboratory, Pune
Keywords: Tensile strength, Burning rate, Double base propellants

Abstract

This paper reports the influence of important process parameters, namely mixing time and batch size; on the mechanical properties and ballistics of nitramine-based advanced CMDB propellants. Considerable improvement to the tune of 67 per cent in tensile strength was observed at a mixing time increase of 60-135 min. Scaling up of batch size from 8 to 25 kg resulted in 30 per cent higher tensile strength. Recorded enhancement of burning rate was of the order of 8 per cent in both the sets of experiments. Ballistically modified composition revealed 11-12 per cent increase in burning rate at all the pressure ranges, on combined increase in mixing time (55 to 85 min) and batch size(5-17kg). These findings are in line with those reported for composite and ballistically modified double-base propellants.

Author Biographies

S. N. Asthana, Explosives Research & Development Laboratory, Pune
Explosives Research & Development Laboratory, Pune
S. R. Gore, Explosives Research & Development Laboratory, Pune
Explosives Research & Development Laboratory, Pune
M. V. Vaidya, Explosives Research & Development Laboratory, Pune
Explosives Research and Development Laboratory, Pune
K. Venkatesan, Explosives Research & Development Laboratory, Pune
Explosives Research and Development Laboratory, Pune
P. G. Shrotri, Explosives Research & Development Laboratory, Pune
Explosives Research and Development Laboratory, Pune.
Published
2013-01-01
How to Cite
AsthanaS., GoreS., VaidyaM., VenkatesanK., & ShrotriP. (2013). Influence of Various Process Parameters on Mechanical Properties and Ballistics of Nitramine-Based Advanced CMDB Propellants. Defence Science Journal, 41(4), 357-362. https://doi.org/10.14429/dsj.41.4437
Section
Chemical Science & Technology