Estimation of Ignition Pressure in Ammunition

Radosław Trębiński, Ryszard Woźniak, Damian Szupieńko and Bartosz Fikus
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Radosław Trębiński: Institute of Armament Technology, Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, 2 Gen. S. Kaliskiego Street, 00-908 Warsaw, Poland
Ryszard Woźniak: Institute of Armament Technology, Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, 2 Gen. S. Kaliskiego Street, 00-908 Warsaw, Poland
Damian Szupieńko: Institute of Armament Technology, Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, 2 Gen. S. Kaliskiego Street, 00-908 Warsaw, Poland
Bartosz Fikus: Institute of Armament Technology, Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, 2 Gen. S. Kaliskiego Street, 00-908 Warsaw, Poland

Energies, 2022, vol. 15, issue 16, 1-10

Abstract: This paper presents the experimental estimation of the ignition pressure value produced by a primer in small arms ammunition. Investigations were performed using a chamber of the capacity equal to the capacity of the 12.7 mm ammunition case. The inner volume of the chamber was adjusted to the free volume in the cartridge by inserting a sleeve or glass balls of a diameter of 2 or 4 mm. The pressure values were measured inside the chamber after the action of the primer. The maximum pressure value was used as an estimation of the ignition pressure value. Depending on the nature of the filling, considerably different values were obtained; they were compared with the values of pressure measured inside the case at the live firing. A considerable difference between the ignition pressure values measured inside the case and those measured in the model setup was detected. Based on these results, a discussion concerning the choice of the starting pressure in interior ballistics lumped parameters models was carried out.

Keywords: interior ballistics; lumped parameter models; ignition pressure; inert filling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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