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Journal articles on the topic 'Barrel bore'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

DĘBSKI, Andrzej, Tomasz MAJEWSKI, and Robert PASZKOWSKI. "Dilatometry of Steel for the Production of 5.56 mm Calibre Rifle Barrels." Problems of Mechatronics Armament Aviation Safety Engineering 12, no. 4 (2021): 57–68. http://dx.doi.org/10.5604/01.3001.0015.5989.

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During high rates of fire, the bore of the firearm barrel is exposed to high temperatures. This exposure induces structural changes in the barrel material, which is especially significant for the substrate of the galvanic chrome plating. The alloy steel grades used currently for firearm barrels, when exposed to heating above the ferrite stability limits, develop a phase transition with a discrete negative change in the material volume, which results in typical crazing in the bore. This effect is destructive to the galvanic chrome plating, leading to a loss of adhesion, which reduces the ballis

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2

Balla, Jiri, Stanislav Prochazka, Robert Jankovych, Stanislav Beer, Zbynek Krist, and Michal Kovarik. "Technical Diagnostics of Tank Cannon Smooth Barrel Bore and Ramming Device." Defence Science Journal 65, no. 5 (2015): 356. http://dx.doi.org/10.14429/dsj.65.8660.

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<p>The technical diagnostics of 125 mm tank cannon 2A46 smooth barrel and ramming devices are discussed respectively. Focuses on barrel diagnostics and suggests new procedures based on reconstructed BG20 Gun Barrel Bore Gauge System, measuring internal diameter of the barrel bore. The new system measures throughout the whole barrel bore the inner diameter not only at the beginning of barrel bore as it was usually measured before. Different nature of barrel wear was revealed between barrels firing sub-calibre and high explosive projectiles. A method for ramming device diagnostics is prese

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3

Beloborodov, Sergey, Aleksandr Neverov, and Aleksandr Trofimenko. "CURRENT ISSUES OF DEVELOPMENT OF WEAPONS MAINTENANCE AND REPAIR FACILITIES." Perm National Research Polytechnic University Aerospace Engineering Bulletin, no. 65 (2021): 80–85. http://dx.doi.org/10.15593/2224-9982/2021.65.08.

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In the process of shooting, the barrel of the weapon gradually wears out and ceases to meet the tactical and technical requirements. The wear of the bore means a set of changes in its geometric dimensions and configurations. The process of wear of the barrels of different types of weapons is not the same and depends on the caliber of the barrel, the rate and mode of fire, while the wear of the barrel occurs unevenly both in the diametrical direction and along its length. The condition of the sur-face of the barrel bore is of great importance in the practical use of weapons. The correct flight

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4

Guo, Wei, Tao Zhang, Zeyuan Mu, Wenfang Zhu, and Mingtao Li. "A magnetic field constrained type of multi-barrel common-rail railgun." Journal of Physics: Conference Series 2478, no. 9 (2023): 092018. http://dx.doi.org/10.1088/1742-6596/2478/9/092018.

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Abstract Adopting the simultaneous launch mode of small and medium caliber railgun is an important means to increase the firepower density, improve the hit probability and strike efficiency. Based on this requirement, this paper creatively proposed a new multi-barrel simultaneous launch EM railgun, named magnetic field constrained type of multi-barrel common-rail railgun. The basic idea is to integrate multiple single-turn rail launchers with a specific structure into one launcher, and “merge” one rail of each single-turn rail launcher with a tight structure combination and arrange it in the c

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5

Kozachuk, V., and M. Sliusarenko. "METHOD OF CONTROLLING PRESENCE OF FOREIGN SUBSTANCES AND OBJECTS IN THE BORE OF THE BARREL USING MONOCHROME LIGHT." Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки, no. 9 (December 3, 2021): 53–57. http://dx.doi.org/10.37701/dndivsovt.9.2021.07.

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In the article, the authors propose a method for controlling the presence of foreign substances and objects inside the barrel. The problem of surface cleanliness control remains relevant in many areas, ranging from sanitary cleaning to nanoelectronics. In the military sphere, this becomes particularly important during the cleaning of cannon barrels. Both powder combustion products and cartridge cap and bullet shell particles are deposited in the barrel during firing from guns. Under the impact of high temperatures, the bullet particles are partially oxidized and cover the barrel channel with a

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6

Yan, Lijun, Yaofeng Xu, Wenfang Zhu, Daye Wang, and Donghai Xu. "Simulation study of flushing ablation by gas-solid two phase flow of artillery barrel." Journal of Physics: Conference Series 2478, no. 2 (2023): 022005. http://dx.doi.org/10.1088/1742-6596/2478/2/022005.

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Abstract For the wear problem of artillery barrel bore during artillery launching, this work uses particle erosion and deposition modules in Fluent Software to simulate the erosion process of gunpowder gas particles on artillery barrel, analyses steady and transient states simulation results, and compares the effects of different influencing factors on barrel bore wear. The results showed that in a certain range, the erosion rate of barrel bore wall was positively correlated with particle velocity and mass flow. 0.25 mm was a critical particle size, and the erosion rate decreased with the incr

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7

Dubey, Ajay, and Pankaj Kumar Sharma. "Thermal Study of 155 mm Gun Barrel." Defence Science Journal 72, no. 2 (2022): 172–81. http://dx.doi.org/10.14429/dsj.72.16625.

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Thermal analysis of 155 Gun barrel is an important aspect of designing the gun barrel and deciding the maximum firing rate. The performance of any artillery depends upon the thermal behaviour of the gun barrel among various factors, and its availability for continuous firing depends on the maximum bore temperature and cook-off time of the barrel. In this paper, the effect of maximum bore temperature, cook-off, active cooling is reviewed. Heat transfer to the gun barrel surface is calculated using analytical analysis with given ammunition parameters. Analytical and finite element analysis of ma

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8

Wang, Zi-meng, Chun-dong Hu, Yang-xin Wang, Heng-chang Lu, Jun-song Li, and Han Dong. "Failure Mechanism of Gun Barrel Caused by Peeling of Cr Layer and Softening of Bore Matrix." Metals 11, no. 2 (2021): 348. http://dx.doi.org/10.3390/met11020348.

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Research on failure mechanism is essential for the prolonging of gun barrel lifetime. To explore the gun barrel failure mechanism, the damage characteristics of a machine gun barrel were characterized. The results show that the failure of the gun barrel is correlated with the peeling of the Cr layer on the bore surface and the softening of the bore matrix. The damage of the Cr layer varies along the axial direction. From the gun tail to the muzzle, the damage mode of the Cr layer changes from peeling to wearing. The damage rate in both the tail and the muzzle is higher than that in the middle

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9

Zou, Libo, Jiangtao Fan, Jianwen Huang, and Jiahao Chen. "The Construction of a Small-Caliber Barrel Wear Model and a Study of the Barrel Wear Rule." Coatings 14, no. 9 (2024): 1200. http://dx.doi.org/10.3390/coatings14091200.

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The wear of small-caliber barrels is one of the key factors affecting barrel life. Based on the Archard wear model, a high-temperature pin plate wear experiment was carried out, and wear models of chrome-plated layers and gun barrel materials were established. In addition, a finite element model of the interaction between the bullet and the barrel was established. The movement of the projectile along the barrel was simulated and analyzed, and the force distribution of the spatial geometry structure of the rifling was mastered through simulation. The wear law of the gun barrel along the axial d

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10

Guo, Jun-hang, Yao-feng Xu, and Yan-li Li. "A Study on Gun Barrel Bore Erosion Based on Combustion Experiments and Finite Element Method Simulations." Journal of Physics: Conference Series 2478, no. 2 (2023): 022024. http://dx.doi.org/10.1088/1742-6596/2478/2/022024.

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Abstract In order to study the erosion behavior of gun barrel bore, a new type combustion setup was designed. The combination of some samples can be mounted in the setup as the outlet nozzle. Using this setup, gun barrel bore sample can be eroded by combustion gases. The erosion process was simulated by a finite element model with a erosion model which based on heat and chemical effects. The simulation results show that thermal concentrated at the land corner and strong erosion occurred. The chamfer on barrel land corner turn smooth after few firings. The experimental and simulation methods in

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11

Geng, Xuehao, Haoyang Li, Feifei Liu, et al. "Life test and inner bore damage analysis of high chamber pressure gun barrel." Journal of Physics: Conference Series 2891, no. 14 (2024): 142001. https://doi.org/10.1088/1742-6596/2891/14/142001.

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Abstract This paper is devoted to research the inner bore damage laws of high chamber pressure tank gun barrel, A larger caliber tank gun barrel is chosen as study object and a full life test is conducted for this barrel, three life-related parameters(muzzle velocity, chamber pressure and inner bore size) are measured during the test. The life of this gun barrel is judged to end according to the high chamber pressure gun barrel life criteria after 658 fired rounds. Life-related parameters variation analysis and initial erosion condition inspection of this test gun barrel are conducted after th

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12

Liao, Xue Bing, Ren Bin Zhou, Yun Fei Yang, and Chang Hong Gong. "Study on the Erosion and Abrasion Mechanism of the Modern Artillery Barrel." Applied Mechanics and Materials 456 (October 2013): 433–37. http://dx.doi.org/10.4028/www.scientific.net/amm.456.433.

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As a certain type of artillery barrel erosion and abrasion for the study, the formation mechanism of the barrel erosion and abrasion from the action of heat is analyzed , the effect of the heat, mechanical wear, chemical action, and so on. By taking the measures of updating gun steel, increasing use of bore coating, erosion reducing additives and others, it can greatly enhance the ability of artillery barrels ant-ablative. Experimental studies have shown that these measures effectively overcome the erosion abrasion problems of this type of artillery.

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13

He, Q., X. K. Gao, and C. J. Zhou. "Study on the Application of Ultrasonic Nondestructive Testing Method for Residual Stress of Autofrettaged Barrel." Journal of Physics: Conference Series 2460, no. 1 (2023): 012054. http://dx.doi.org/10.1088/1742-6596/2460/1/012054.

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Abstract Gun barrel under high bore pressure in the process of gun launching. The tangential stress was produced by autofrettaged technology, which can greatly improve the bearing capacity of barrel. The ultrasonic nondestructive testing method was used to design the residual stress testing device of barrel bore. The tangential residual stress of 125 mm barrel at certain depth from the inner surface was measured. The finite element model considering hydraulic autofrettage and finish machining of inner and outer surface of barrel was established, and the simulation data was compared with test d

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14

Latyshov, I. V. "Topical Issues of Forensic Research of Firearms with Oval-Screw Drilling of the Bore “Lancaster” and Its Traces on the Bullets." Theory and Practice of Forensic Science 18, no. 3 (2023): 95–103. http://dx.doi.org/10.30764/1819-2785-2023-3-95-103.

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The article discusses the issues of developing the legal, scientific, and methodological foundations of the forensic investigation of firearms with oval-screw drilling of the Lancaster barrel bore. The author makes some proposals on how to bring the norms of the regulatory and technical regulations in the field of arms and ammunition trafficking in line with the modern concepts of rifled firearms. The mechanism of formation of traces of the barrel bore on the fired bullets is revealed. The author notes that the drilling of the Lancaster barrel bore determines the appearance of traces from its

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15

Dzindzibadze, Giorgi. "Possibility to Identify Bullets and other Components of the Cartridges by Consideration on Barrels and Projectiles Types." European Scientific Journal, ESJ 18, no. 29 (2022): 47. http://dx.doi.org/10.19044/esj.2022.v18n29p47.

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There are three types of barrels - polygonal rifling, traditional (conventional) rifling, and smooth bore. Since the internal shape of each barrel is different, the projectiles passed in these barrels have different marks and some are more depicted than others. Identifying private signs is necessary for comparison. If such marks do not remain on the surface of the bullet, it will be unusable for the identification process, which is based on a comparison of general and individual marks. Although scientists have different opinions on this issue, some of them claim that it is possible to identify

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16

Alan Suyadnya, Kadek, Dede Tarwidi, Erwin Budi Setiawan, and Rian Febrian Umbara. "Numerical Modeling of Heat Transfer in Gun Barrel with Experimental Validation." International Journal of Engineering & Technology 8, no. 1.9 (2019): 62–66. http://dx.doi.org/10.14419/ijet.v8i1.9.26369.

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Transient heat transfer in a gun barrel has been investigated numerically in this paper. Numerical modeling is conducted with the objective to obtain temperature history of the gun barrel. From the temperature history, the maximum number of gun shots before the cook-off temperature of the gun barrel attained can be known. Gun barrel is a part of firearm functioned to control gas flow which is aimed to propel projectiles out of the barrel with high velocity. Each propelled projectile produces very high temperature caused by projectiles explosion and friction between projectiles and bore surface

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17

Wang, Shaowei, Chuanbin Wang, and Wenjun Li. "Thermodynamic Coupling Simulation of CrN/Cr Composite Coating Barrel Bore." Coatings 11, no. 11 (2021): 1358. http://dx.doi.org/10.3390/coatings11111358.

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The barrel is the core component of the artillery, and its inner coating is the key material to effectively protect the barrel and improve its service lifetime. Due to its good properties, CrN/Cr composite is a potential alternative to the currently used Cr coating. In this study, finite element simulation has been performed using the software Ansys Workbench to analyze the temperature field and coupled stress field of the Cr coating barrel and the CrN/Cr composite coating barrel, respectively, during the firing. The results showed that compared with Cr coating barrel, the CrN/Cr coating can r

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18

Yeo, Woon Joo, Je Wook Chae, Chan Lee, Eui Jung Choi, and Jun Ho Lee. "A Study on Bore-Sighting for the Error Reduction of the XK11." Key Engineering Materials 326-328 (December 2006): 179–82. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.179.

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This study is launched to get exact bore-sighting value in the process of assembly for XK11. Image processing method with Charged Coupled Device camera is chosen for the Error reduction of bore-sighting. The results of this method by using a CCD camera and the Testing Target Method are described in this paper. After we confirm the performance of the Dual-Barrel Weapon and that of the Firing Control System in the Dual Barrel Weapon System, the bore-sighting which is a part of the process in the system assembly is accomplished. In this process, the position of the barrel is identified by using t

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19

Viet, Quy BUI, and Viet Nguyen Trung. "STUDYING THE EFFECT OF RIFLING PARAMETERS ON THE STRESS STATE IN A GUN BARREL WALL WHEN FIRING." Engineering and Technology Journal 8, no. 08 (2023): 2556–64. https://doi.org/10.5281/zenodo.8216682.

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  The problem of determining the stress state of the rifled-bore barrel when firing was presented in this article. Where the effects of rifling parameters such as the quantity of grooves n, groove width a, depth of groove t, radius of groove corner ρ were investigated. A rifled-bore barrel has been modeled and investigated by using Ansys software on the basis of finite element method. The problem has only been treated under pressure load in static case. The article can be used for reference to improve the accuracy in calculating design and manufacturing gun barrel.

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20

Li, Shili, Peiyu Qin, Weixi Yang, and Wei Fan. "Research on strain testing technology of electromagnetic railgun’s abnormal barrel." Journal of Physics: Conference Series 2478, no. 12 (2023): 122016. http://dx.doi.org/10.1088/1742-6596/2478/12/122016.

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Abstract Aiming at difficult strain test and unable to accurate strain test for electromagnetic railgun’s special-shaped barrel bore, the strain testing technology of special-shaped barrel was studied. According to electromagnetic railgun strain test characteristics analysis, the back of the rail and the back of insulation support plate are selected as the strain test points, FBG(Fiber Bragg Grating) stain sensor is embedded along the circumference of the barrel to obtain the special-shaped barrel true stain value. At the same time, in order to comparison, The papers studies the rail’s strain

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21

Wang, Haoyu, Jiawei Fu, Longmiao Chen, Nailin Liu, and Jianing Pang. "Effect of considering thermoplasticity of gun steel on thermomechanical coupling response of barrel." Journal of Physics: Conference Series 2891, no. 6 (2024): 062030. https://doi.org/10.1088/1742-6596/2891/6/062030.

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Abstract To explore the effect of considering thermoplasticity of gun steel on the thermomechanical coupling of the barrel during artillery firing, the thermoplastic coupling behavior of the barrel under transient thermal and mechanical loads is investigated. A thermomechanical coupling finite element model of the barrel was established. The transient temperature field and stress field of the barrel during the gun firing process were analyzed. By comparing the results of the thermoelastic model with that of thermoplasticity model, the effect of considering thermoplastic of gun steel on thermom

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22

Jankovych, Robert, Milos Hammer, and Matej Harcarik. "BORE QUALITY OF SHOTGUN BARREL BLANKS." MM Science Journal 2015, no. 04 (2015): 728–30. http://dx.doi.org/10.17973/mmsj.2015_12_201550.

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23

Anipko, Oleg, Dmitro Baulin, Stanislav Horielyshev, et al. "Development of a method for predicting barrel wear resistance when using ammunition with a long storage life." EUREKA: Physics and Engineering, no. 2 (March 29, 2024): 119–30. http://dx.doi.org/10.21303/2461-4262.2024.003298.

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Despite the fact that a large amount of small arms ammunition has been used up over the past two years, their stocks in warehouses and arsenals in various countries are quite large. And their shelf life is 20 years or more. In addition, over time, the number of such ammunition will increase. Among the large number of requirements for modern small arms, one can highlight the provision of the necessary survivability of its parts and mechanisms. The problem of barrel survivability is especially important. One of the factors affecting barrel survivability is changes in internal ballist

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24

Liu, Chunrui, Jiayi Qu, Gang Peng, et al. "Investigation of erosion mechanism of low alloy steel in a vented combustor." Journal of Physics: Conference Series 3021, no. 1 (2025): 012084. https://doi.org/10.1088/1742-6596/3021/1/012084.

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Abstract In the present study, the erosion mechanism of low alloy steel has been investigated at simulated conditions close to the actual working environment within artillery barrels by using a vented combustor. The erosion rate is strongly dependent on heat input as tested with burst disks, whilst the testing with pseudo-projectiles is associated with additional thermo-mechanical loading from engraving and projectile-bore friction. A detailed investigation of the bore surface reveals that erosion is closely related to plastic deformation and oxidation of low alloy steel at a relatively high l

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25

Zhao, Na, Long Zhang, Rui Li, Biao Ke, and Rufeng Han. "Simulation analysis of the influence of flow field structure changes in-bore on the barrel life." Journal of Physics: Conference Series 2891, no. 16 (2024): 162003. https://doi.org/10.1088/1742-6596/2891/16/162003.

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Abstract By regulating the flow pattern of gunpowder gas and increasing the vortex dissipation intensity near the wall of the barrel, the thermal effect of gas on the wall of the barrel can be reduced, which can effectively reduce the thermal erosion of the barrel and improve its service life. Based on the initial boundary conditions determined by one dimensional two-phase flow interior ballistic model, numerical simulations were conducted using CFD method to investigate the influence of different structural shapes on the thermal flow field inside the barrel, and the corresponding barrel erosi

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26

Tran, Van Doanh. "ESTABLISHING FUNCTIONAL RELATIONSHIP OF INTERNAL BALLISTIC AND UTILIZATION COEFFICIENT OF THE GUN BARREL BORE VOLUME." Journal of Science and Technique 15, no. 4 (2020): 38–46. http://dx.doi.org/10.56651/lqdtu.jst.v15.n04.102.

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This paper establishes an internal ballistic correlation for conventional guns as a function of travel of the projectile in the barrel bore. This function has three parameters that match calculation results or experimental results. Three parameters are determined by these characteristics: maximum pressure of propellant gases, muzzle pressure of propellant gases, and muzzle velocity of the projectile. According to the ballistic correlation, the utilization coefficient of the barrel bore volume for a specific gun can be evaluated by maximum pressure and muzzle pressure.

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27

Huang, C. L., L. Chen, H. Xu, Z. X. Li, and Z. L. Wu. "Dynamic analysis of bullet in-bore motion coupled with barrel temperature field." Journal of Physics: Conference Series 2478, no. 2 (2023): 022012. http://dx.doi.org/10.1088/1742-6596/2478/2/022012.

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Abstract In this paper, a multi-physics field coupled finite element model for the motion of projectile in a hot barrel is proposed and validated by muzzle velocity test and barrel temperature test. The model includes heat transfer analysis, explicit dynamic analysis and investigates the in-bore motion of the projectile under different barrel temperature conditions. It is pointed out that, with the increase of barrel temperature, the radial displacement of the projectile centroid increases, the consistency of the radial velocity of the projectile centroid becomes worse, and the swing angle inc

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28

Guo, Cheng Yuan, Li Qun Wang, and Guo Lai Yang. "Launching dynamics of terminal guidance projectile considering barrel erosion and mechanical wear." Vibroengineering Procedia 54 (April 4, 2024): 314–19. http://dx.doi.org/10.21595/vp.2024.24081.

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This paper simulates the launching dynamics of the Terminal-guidance projectile considering the barrel thermo-chemical erosion wear and mechanical wear. A thermochemical erosive material degradation model that considers the rise in friction temperature is first introduced. Moreover, the wear state of barrel rifling at different periods is calculated using the erosion wear model. A three-dimensional model of the worn barrel is established, and the coupled barrel– terminal-guidance projectile launch dynamics are simulated for different wear periods. Finally, the projectile's bore overload and at

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29

Burdykin, V. D. "Increasing the stability of fuel injection pump process." Traktory i sel hozmashiny 79, no. 8 (2012): 38–40. http://dx.doi.org/10.17816/0321-4443-69478.

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A patented construction of plunger and barrel assembly is proposed. A ball valve is placed in its axial bore to eliminate the fuel flowing into low pressure cavity during the injection process. The design of plunger and barrel assembly and its operation concept are considered.

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30

Zhu, Wenfang, Yuan Feng, Yuwei Wang, and Yingzhi Qu. "Research on the Correlation between the Barrel Temperature and the Parameters of Interior Ballistic and Charge." Journal of Physics: Conference Series 2891, no. 14 (2024): 142006. https://doi.org/10.1088/1742-6596/2891/14/142006.

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Abstract Aiming at the problem that the barrel life of a large calibre artillery is obviously lower than the international advanced level, and the thermal erosion inside the barrel is serious, based on modern interior ballistic theory and heat transfer theory, a simulation of one-dimensional two-phase flow interior ballistic, heat exchange process between gas-solid two-phase flow and the barrel is carried out. The influence of maximum pressure in bore, charge, propellant explosion temperature, barrel structure and other parameters on the barrel temperature is obtained, and the correlation betw

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31

Kalyanov, V. A., M. V. Davydov, and N. Sh Nigmatullin. "On the problem of determination of the distance of the pneumatic rifle shot." Kazan medical journal 75, no. 4 (1994): 282–83. http://dx.doi.org/10.17816/kazmj90066.

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The criteria of determination of the distance of the IZH-38 pneumatic rifle shot by peculiarities of lubricant deposits of the barrel bore on the vertical target wthi regard to its remoteness from the barrel cut are presented. The regularity of lubricant deposits on the target of an elliptic form in three zones: continuous, relatively continuous and solitary drops is revealed. The distance of the shot affects the formation, nature, relative position, combination and sizes of zones. The greatest distance of the shot comprises 185 sm wherein lubricant deposits on the target are revealed. The dat

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32

Wu, Chang Wei, Yong Hai Wu, and Qin Man Fan. "Analysis of Temperature and Stress of a Thin-Walled Cylinder Based on FEM." Applied Mechanics and Materials 373-375 (August 2013): 12–15. http://dx.doi.org/10.4028/www.scientific.net/amm.373-375.12.

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Gun tube is a kind of thin-walled circular tube with special use. Its inner surface are loaded serious gas loading of high temperature and high pressure gas when consecutive shooting. In this paper, the assault rifle gun is taken as the research object and the FEM software ANSYS is taken as a computing platform, data of barrel dynamic temperature and stress under continuous loading are obtained. The calculation results show that, (1) The temperature field and stress field coupling effect is very obvious in the barrel bore surface; (2) Thermal shock has obvious thin-layer effect; (3) The therma

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33

Hu, Jie, Hua Chen, Ying Ma, and Zhiwei Feng. "Research on the Strength Check of Sub-caliber Fragment Gun Barrel." Journal of Physics: Conference Series 2501, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1742-6596/2501/1/012005.

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Abstract In order to consider the strength of gun barrel more accurately in the design of gun barrel, a virtual prototype of fragment gun barrel is established in this paper. The finite element simulation model of the strength of gun barrel considering the axial force and temperature change is established, and the finite element simulation model of the strength of gun barrel considering the axial force, temperature change and dynamic load is established. Through numerical calculation and finite element simulation, the changes of strength of barrel under axial force, temperature and dynamic loa

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34

Sun, He Yang, Chang Zhi Jia, Yao Xin He, and Tian Xiao Cui. "Numerical Simulation of Gun Bore Damage during Engraving Process of Driving Band." Advanced Materials Research 1142 (January 2017): 363–66. http://dx.doi.org/10.4028/www.scientific.net/amr.1142.363.

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A Damage mechanics finite element numerical computation method was established based on HLC microscopic damage model to solve the problem of damage, crack initialization and growth inside bore during the firing process. The damage and failure process of the bore surface was simulated numerically during multiple rounds of firing. The law of the barrel material performance changing with the number of firing rounds was analyzed during the engraving process of the driving band and compared with the experimental results. It is proved that HLC microscopic damage model can show the complicate damage

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35

Adamov, А. А. "Firearms and weapon devices of the Russian army in 1582–1585 (based on materials from the settlement of Isker)." VESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII, no. 1(52) (February 26, 2021): 50–61. http://dx.doi.org/10.20874/2071-0437-2021-52-1-5.

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Archaeological materials found in different periods during the excavations in the settlement of Isker (Ku-chum, 17 km from the city of Tobolsk), the ancient capital of the Khanate of Sibir, allow the analysis of firearms of Russian warriors of the 1582–1585, who took part in the Yermak’s Conquest of the Khanate. Various gun barrel fragments, breechloader bolts, a hammer with a lock spring, steel strikers with turnscrews, metal and bone ram-rod parts, bullet moulds were discovered during the excavations in Isker. These findings suggest that Russian pishchal arquebuses with matchlocks of the fir

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36

Andrews, Tony D. "Projectile Driving Band Interactions With Gun Barrels." Journal of Pressure Vessel Technology 128, no. 2 (2006): 273–78. http://dx.doi.org/10.1115/1.2172965.

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This paper discusses results from a series of trials carried out to determine the effect of the projectile driving band on the stress applied to a 155mm gun barrel during firing. The interference between the driving band and gun barrel can apply significant loads to the barrel and, in extreme cases, lead to premature cracking and failure of the barrel. Strain gage data from firing trials has been used to characterize the external strain from firing different projectiles and charges to identify potential problems and provide information for fatigue analysis. Very high band strains were routinel

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Newman, D. C., D. P. Bauer, D. Wahrer, and E. Knoth. "A maintainable large bore, high performance railgun barrel." IEEE Transactions on Magnetics 31, no. 1 (1995): 344–47. http://dx.doi.org/10.1109/20.364664.

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Chen, Michael M. "Projectile Balloting Attributable to Gun Tube Curvature." Shock and Vibration 17, no. 1 (2010): 39–53. http://dx.doi.org/10.1155/2010/698078.

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Transverse motion of a projectile during launch is detrimental to firing accuracy, structural integrity, and/or on-board electronics performance of the projectile. One manifest contributing factor to the undesired motion is imperfect bore centerline straightness. This paper starts with the presentation of a deterministic barrel model that possesses both vertical and lateral deviations from centerline in accordance with measurement data, followed by a novel approach to simulating comprehensive barrel centerline variations for the investigation of projectile balloting^1 motions. A modern project

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Zhou, Mi, Qingying Men, Honghai Tong, Yin Wang, and Jiao Li. "The Influence of the Material and Thickness of the Barrel on the Speed of Flying Plates." Journal of Physics: Conference Series 2478, no. 3 (2023): 032078. http://dx.doi.org/10.1088/1742-6596/2478/3/032078.

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Abstract In order to reduce the ignition energy of the slapper plate detonator and optimize its performance, for the slapper plate detonator with the size of 0.4mm × 0.4mm × 5µm and the thickness of the flying plate 25µm, the material and diameter of the barrel were optimized by using photon Doppler velocity testing technology (PDV). Three kinds of materials including ceramic, sapphire and stainless steel and accelerating bore with thickness 0.3mm, 0.45mm and 0.6 mm are analyzed.. The experimental results show that: at the same discharge voltage, the ceramic barrel flyer The speed of the sapph

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Xiao, Hongcheng, Li Ruxiang, Wei Li, Junhao Wang, and Yingjie Li. "Investigation on structural failure of filament reinforced barrel containment." Journal of Physics: Conference Series 2478, no. 9 (2023): 092004. http://dx.doi.org/10.1088/1742-6596/2478/9/092004.

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Abstract During the launching process of a composite railgun, some working conditions may lead to the structure failure of its filament reinforced barrel. For instance, the instantaneous electric power impact caused by the unexpected large pulse current and surge from the pulse-forming network, which inspires the electrodynamic response beyond the safety limit of the barrel. More importantly, the alternating load after a long-term working causes damage accumulation and failure in the composite structure. For the railgun, considering that the radial deformation of the barrel has special effect

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Peng, Fu Qiang, Qiang Chen, and Jun Wei Bao. "Distortion Correction for the Gun Barrel Bore Panoramic Image." Applied Mechanics and Materials 427-429 (September 2013): 680–85. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.680.

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Single Reflector Panoramic Imaging System (SRPIS) has been widely used because of its advantages such as simple structure, fast imaging, integration and miniaturization. It can observe objects around the reflector mirror, which fits for the quality inspection of gun barrel bore. However, its images often suffer from serious distortions in radial and tangential directions. Therefore, to ensure the accuracy of captured images, distortion must be eliminated. In this paper, a distortion correction method is proposed based on the imaging characteristics of SRPIS. Firstly the relationship between th

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Fedin, A. V., E. A. Chashin, and V. A. Fedorenko. "Identification of Firearms Laser Marks of the Barrel Bore." Izvestiya of Saratov University. Economics. Management. Law 12, no. 3 (2012): 56–58. http://dx.doi.org/10.18500/1994-2540-2012-12-3-56-58.

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The paper considers the possibility of using laser marking to identify the bore arms on the traces on fired bullets. The analysis of modes of laser processing of a trunk at which traces on the shot bullet can be recognized by suitable to identification, is executed on the basis of the spent experiments.

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Zieliński, Mateusz, Piotr Koniorczyk, Zbigniew Surma, Janusz Zmywaczyk, and Marek Preiskorn. "Numerical Study of Heat Transfer in a Gun Barrel Made of Selected Steels." Energies 15, no. 5 (2022): 1868. http://dx.doi.org/10.3390/en15051868.

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The results of numerical simulations of transient heat transfer in the barrel wall of a 35 mm caliber cannon for a single shot and the sequences of seven shots and sixty shots for chosen barrel steels are presented. It was assumed that the cannon barrel was made of one of the three types of steel: 38HMJ (1.8509), 30HN2MFA and DUPLEX (1.4462). To model the thermal phenomena in the barrel, the barrel wall material was assumed to be homogeneous and the inner surface of the barrel had no protective chromium or nitride layer. The calculations were made for temperature-dependent thermophysical param

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Yang, Hao, Jian Xu, Guoqiang Wang, Zhen Yang, and Qiang Li. "Prestress Modal Analysis and Optimization of Cantilever Supported Rotor under the Unbalanced Axis Force and Moving Mass." Applied Sciences 12, no. 10 (2022): 4940. http://dx.doi.org/10.3390/app12104940.

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In order to reduce the x-direction and Y-direction displacement disturbance of the barrel and improve the firing accuracy, based on Bernoulli Euler’s theoretical assumption of beam and taking M134 barrel machine gun as the calculation model, the pre-stress modal analysis and optimization of cantilever supported rotor under unbalanced force and moving mass are carried out in this paper. The main work of this paper is as follows: (1) M134 physical model is established, and the unbalanced force in the motion process of projectile in bore is solved by interior ballistic theory; (2) Based on the un

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ZIELIŃSKI, Mateusz, Piotr KONIORCZYK, Zbigniew SURMA, Marek PREISKORN, and Judyta SIENKIEWICZ. "Selected Aspects of Heat Transfer Study in a Gun Barrel of an Anti-Aircraft Cannon." Problems of Mechatronics Armament Aviation Safety Engineering 14, no. 2 (2023): 73–86. http://dx.doi.org/10.5604/01.3001.0053.6672.

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The paper presents the results of computer simulations of the transient heat flow in the barrel wall of a 35 mm caliber cannon for a single shot and a sequence of seven shots for a selected 30HN2MFA barrel steel. It was assumed that the inner surface of the barrel does not have a protective layer of chromium or nitride. When calculating heat transfer in a barrel, constant and temperature variable values of thermal conductivity, specific heat and density (in the range from RT (Room Temperature) up to 1000) in the 30HN2MFA steel were assumed. The test results were compared for both cases. A barr

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SZUPIEŃKO, Damian, and Radosław TRĘBIŃSKI. "Comparative Analysis of Different Methods of Calculating Pressure Inside the Barrel in Post-Muzzle Period of a Shot." Problems of Mechatronics Armament Aviation Safety Engineering 13, no. 3 (2022): 83–98. http://dx.doi.org/10.5604/01.3001.0016.0053.

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The article presents the results of calculations of the pressure of propellant gases inside the barrel in a post-muzzle period of a shot. Three methods of calculating the pressure in the barrel bore in the post-muzzle period of the shot were used in the work: the Brawin method, the method describing the outflow of gases from the barrel bore to the environment, and the method using the phenomenon of the transition of a pressure-averaging rarefaction wave from the barrel muzzle to the bottom of the combustion chamber. In the conducted tests, the obtained pressure courses were used to determine t

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Ji, Lu, Zhao Xu, Qihua Pan, and Hong Zhang. "Damage formation and force analysis of barrels." Journal of Physics: Conference Series 2541, no. 1 (2023): 012022. http://dx.doi.org/10.1088/1742-6596/2541/1/012022.

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Abstract The barrel is one of the important parts of artillery. At the same time, when firing, the bore needs to withstand the high temperature and high pressure powder gas as well as the impact and friction of the projectile, and different damage forms such as cracks, wear and dechromium on the bore will appear. However, the wear of the bore is one of the main reasons for the error of the firing accuracy, and it can even cause other security risks. In this paper, the common damage formation and the force on the tube bore body during the firing were analyzed, so as to further estimate the life

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Taranova, Ludmila S., and Igor O. Mikhailov. "OPERATING PRINCIPLE OF THE DEVICE FOR MEASURING THE GEOMETRIC CHARACTERISTICS OF THE GUN BARREL." Interexpo GEO-Siberia 6 (May 21, 2021): 287–92. http://dx.doi.org/10.33764/2618-981x-2021-6-287-292.

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The article presents the principle of operation of the measuring device, which is based on an internal gauge that moves along the barrel bore using a movement system fixed on the end surface. The article presents the principle of operation of the optoelectronic module, which is designed for contact measurement of deviations of linear dimensions from the reference ones. This measuring device is multifunctional, and is designed not only to determine the diameter of the barrel in many sections, but also to construct its profile, taking into account the curvature of the channel.

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Zmindak, Milan, Zoran Pelagic, Martin Nagel, Lukas Smetanka, and Zuzana Stankovicova. "Simulation Modeling of Barrel Bore Wear under Dynamic Pressure Load." Communications - Scientific letters of the University of Zilina 17, no. 3 (2015): 51–56. http://dx.doi.org/10.26552/com.c.2015.3.51-56.

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A.M., Lipanov, Rusyak I.G., and Sufiyanov V.G. "A STUDY ON THE EFFECTS OF GUN BARREL VIBRATIONS ON THE FIRING ANGLE OF A PROJECTILE." Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, no. 68 (2020): 80–94. http://dx.doi.org/10.17223/19988621/68/8.

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The problem of longitudinal and transverse vibrations of an artillery gun barrel during firing is considered. Unsteady stress-strain equations for the gun barrel are solved together with equations of internal ballistics. Ballistic parameters and dynamics of the projectile motion inside a gun bore are determined using a thermodynamic approach. Formulation of the vibration problem accounts for the initial gravitational deflection of the barrel, mass forces, varying distribution of the propellant gas pressure, and the effect of moving projectile mass on gun barrel vibrations. To solve the equatio

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