EXPERIMENTAL AND NUMERICAL INVESTIGATION ON THE PERFORMANCES OF A SMALL WEAPON BARREL DURING ITS LIFECYCLE

Walid Boukera Abaci, Nebojsa Hristov, Igor Radisavljevic, Lazar Stojnic, Aleksa Anicic

DOI Number
10.22190/FUME220903003A
First page
Last page

Abstract


The paper presents experimental and numerical investigations on the performances of a small caliber rifle barrel during its lifecycle. Two 7.62 mm rifle barrels were used, the first was considered as a standard barrel, the second barrel was subjected to an accelerated life cycle test. Measurements of the muzzle velocity, the rate of fire and the firearm accuracy and precision were carried out. The paper presents the correlation between the measured parameters and the total number of shots fired. After the durability tests, longitudinal cross sections were made by cutting the tested and the standard barrels. 3D scanning was employed to perform a comparison between the tested and the standard bore surfaces. ANSYS Explicit dynamic analyses were performed based on the obtained surface scans. The numerical analyses results of the tested and the standard barrels showed good agreement with the experimental and the numerical internal ballistic model results.

Keywords

Accelerated lifecycle tests, Muzzle velocity, Rate of firing, Accuracy, Precision, Bore damage, 3D scanning, Explicit dynamic analysis

Full Text:

PDF

References


Ahmad, I., 1988, The problem of gun barrel erosion: an overview, Gun propulsion technology, 109, pp. 311-355.

Lawton, B., 2001, Thermo-chemical erosion in gun barrels, Wear, 251(1-12), pp. 827-838.

Lawton, B., 2003, The influence of additives on the temperature, heat transfer, wear, fatigue life, and self ignition characteristics of a 155 mm gun, Journal of Pressure Vessel Technology, 125(3), pp. 315-320.

Sopok, S., Rickard, C., Dunn, S., 2005, Thermal–chemical–mechanical gun bore erosion of an advanced artillery system part one: theories and mechanisms, Wear, 258(1-4), pp. 659-670.

Sopok, S., O'Hara, P., Pflegl, G., Dunn, S., Coats, D., 1997, Thermochemical erosion modeling of the 25 mm M242/M791 gun system, 33th Joint Propulsion Conference and Exhibit, 2850.

Sopok, S., O’Hara, P., Pflegl, G., Dunn, S., Coats, D., Nickerson, G., 1999, Unified computer model for predicting thermochemical erosion in gun barrels, Journal of propulsion and power, 15(4), pp. 601-612.

Sopok, S., O'Hara, P., Pflegl, G., Dunn, S., Coats, D., 1996, First computer code for predicting thermochemical erosion in gun barrels, Report ARCCB-TR-96015, Benet Weapons Lab, Watervliet, NY, USA.

Jaramaz, S., Micković, D., Elek, P., 2010, Determination of gun propellants erosivity: Experimental and theoretical studies, Experimental thermal and fluid science, 34(6), pp. 760-765.

Putti, A.A., Chopade, M.R., Chaudhari, P.E., 2016, A review on gun barrel erosion, International journal of current engineering and technology, 4, pp. 231-235.

Johnston, I.A., 2005, Understanding and predicting gun barrel erosion, Report DSTO-TR-1757, Weapons Systems Division, Australia.

Shen, C., Zhou, K.D., Lu, Y., Li, J.S., 2019, Modeling and simulation of bullet-barrel interaction process for the damaged gun barrel, Defence Technology, 15(6), pp. 972-986.

Li, X., Mu, L., Zang, Y., Qin, Q., 2020, Study on performance degradation and failure analysis of machine gun barrel, Defence Technology, 16(2), pp. 362-373.

Li, X., Wang, Y., Zang, Y., Guan, B., Qin, Q., 2019, Analysis of interior ballistic performance degradation of a worn gun barrel based on finite element method, Journal of Physics: Conference Series, 1314(1), 012090.

Ding, C., Liu, N., Zhang, X., 2017, A mesh generation method for worn gun barrel and its application in projectile-barrel interaction analysis, Finite Elements in Analysis and Design, 124, pp. 22-32.

Nelson, W., 1988, Use of circular error probability in target detection, Report ESD-TR88-109, Massachusetts, USA.

Akıncıoğlu, S., 2022, Taguchi optimization of multiple performance characteristics in the electrical discharge machining of the TiGr2, Facta Universitatis-Series Mechanical Engineering, 20(2), pp. 237-253.

Sidhu, A.S., 2021, Surface texturing of non-toxic, biocompatible titanium alloys via electro-discharge, Reports in Mechanical Engineering, 2(1), pp. 51-56.

www.hexagonmi.com/nl-NL/products/portable-measuring-arms/romer-absolute-arm-compact (last access: 08.08.2022)

Boukera Abaci, W., Hristov, N. P., Ziane, A. N., Jerković, D. D., Savić, S. R., 2021, Analysis of thermal and gas-dynamic characteristics of different types of propellant in small weapons, Thermal Science, 25(6 Part A), pp. 4295-4306.

Evci, C. Isik, H., 2018, Analysis of the effect of propellant temperature on interior ballistics problem, Journal of Thermal Engineering, 4(4), pp. 2127-2136.

Boukera Abaci, W., Kari, A.V., Jerković, D.D., Hristov, N.P., 2020, The influence of the internal ballistic pressure on the rifled barrel stress response, Scientific Technical Review, 70(2), pp. 41-46.


Refbacks

  • There are currently no refbacks.


ISSN: 0354-2025 (Print)

ISSN: 2335-0164 (Online)

COBISS.SR-ID 98732551

ZDB-ID: 2766459-4