Modeling and simulation of bullet-barrel interaction process for the damaged gun barrel

Shen, Chao; Zhou, Ke; Lu, Ye; Li, Jun song

doi:10.1016/j.dt.2019.07.009

Cited by 34 publications

(16 citation statements)

References 5 publications

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“…It can be easily seen that the effects of the ethyl centralite (C 17 H 20 N 2 O), magnesium oxide (MgO) and graphite (C) can be neglected in the combustion equation. Eqn (24) can easily be obtained when selecting a 1 = 100, b 1 = 66 and c 1 = 126 in the case of complete burning. But in the real case, there should be H 2 and CO in the combustion products due to incomplete burning because of the insufficient oxygen in the medium.…”

Section: Calculation Of the Heat Convection Coefficients Inside And Outside The Barrelmentioning

confidence: 99%

“…This model considers specific heat and thermal conductivity of the barrel as temperature dependent. Shen 24 , et al developed time dependent thermo-mechanical finite element model for the simulation of the interior ballistics process of the bullet-barrel system. They concluded that main factors responsible for the life end of 12.7 mm barrel are the variation of the bullet's surface morphology and the increase of its disturbance at the muzzle.…”

Section: Introductionmentioning

confidence: 99%

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Heat Transfer Modelling and Simulation of a 120 mm Smoothbore Gun Barrel During Interior Ballistics

Susantez

Caldeira²

2022

Def. Sc. J.

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Understanding the heat transfer phenomenon during interior ballistics and consequently presenting a realistic model is very important to predict the temperature distribution inside the cannon barrel, which influences the gun wear and the cook-off. The objective of this work is to present a new detailed numerical model for the prediction of thermal behaviour of a cannon barrel by combining PRODAS interior ballistics simulation with COMSOL simulation. In this study, a numerical model has been proposed for the heating behaviour of a 120 mm smoothbore cannon barrel, taking into account the combustion equation of the JA-2 propellant. Temperature dependent thermophysical properties of product gases were used for the calculation of the convective heat transfer coefficient inside the barrel. Projectile position, velocity of the projectile, gas temperature inside the barrel, volume behind the projectile and mass fraction during interior ballistics have been obtained by PRODAS software and used in the numerical model performed by COMSOL multiphysics finite element modelling and simulation software. Temperature simulations show that maximum wall temperature inside the cannon barrel is observed after 3 ms from fire, when maximum value of the convective heat transfer coefficient inside the barrel is observed. The results reveal that the convective heat transfer coefficient of burned gases inside the gun has major effect than the burned gas temperature on the heat transfer phenomenon.

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Section: Calculation Of the Heat Convection Coefficients Inside And Outside The Barrelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heat Transfer Modelling and Simulation of a 120 mm Smoothbore Gun Barrel During Interior Ballistics

Susantez

Caldeira²

2022

Def. Sc. J.

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“…An analysis of the barrel impact response during bullet engraving is a prerequisite for barrel life analysis and design and has been extensively studied by domestic and foreign scholars. Ding et al and Shen et al both proposed novel finite element mesh generation methods for worn gun barrels to analyze the bullet-barrel interaction [2,3]. Ekansh [4] used the ANSYS software to simulate the transient response of a T-finned machine gun barrel during bullet engraving.…”

Section: Introductionmentioning

confidence: 99%

“…List et al [9] derived an accurate formula for the friction coefficient of a barrel-projectile friction pair by developing a hydrodynamic lubrication friction model and comprehensively considering the extreme working conditions of the high pressure and speed of the friction pair. Shen et al [3] performed a numerical calculation of projectile motion in a barrel assuming a constant projectile-barrel friction coefficient. Ding et al [2] studied the influence of a worn barrel on interior ballistics and developed a friction model with a temperature-dependent friction coefficient.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study on the Impact Response of Barrels with Different Rifling Profiles during Bullet Engraving

Wei

Cheng

Wang

et al. 2022

Modelling and Simulation in Engineering

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Gun barrel bores are prone to ablative damage and stress concentration under high temperatures, pressures, and dynamic load impacts during bullet engraving, which may result in barrel failure. A dynamic stress analysis during bullet engraving is a prerequisite for barrel life analysis and design. Impact responses during bullet engraving were investigated in this study for rifled barrels with different cross-sectional profiles to improve the match between the dynamic performances of the gun barrel and bullet and effectively extend the barrel service life. First, feature suppression by expression based on a uniform parametrized template was used to perform parametric modeling of a gun barrel with rectangular, trapezoidal, multiarc, and multilateral-arc rifling profiles. Second, theoretical models were constructed considering different rifling structures: a model to calculate the chamber pressure, a model for heat transfer in the barrel during continuous firing, and a model to calculate the friction between a bullet and the barrel wall surface based on shear-slip friction theory. These models were integrated into a simulation, where the ABAQUS (ABAQUS. 6.14.1-4. 2014. DASSAULT SIMULIA.)/Explicit software was used to build a finite element model of the barrel dynamic stress under heat-force-friction coupling during bullet engraving. Finally, the dynamic response stresses were analyzed for bullet engraving into four barrels with different rifling profiles. All four types of barrels developed considerable stress at the junction between the forcing cone and the rifled bone under the same impact load. The stress values of the multiarc and multilateral-arc rifling were far below that for the rectangular and trapezoidal rifling. Thus, the barrels with multiarc and multilateral-arc rifling profiles had a higher impact resistance than the other two barrel types.

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“…They found that laser prequenched substrate may suppress the interface erosion damage by suppressing the sub-interfacial crack forming, for this reason, the spallation resistance of Cr-coatings is enhanced. SONG et al [7] used nano-material-containing propellant and standard propellant respectively to test barrel life of three small-caliber rifles. The test results show that the service life was obviously extended after adding nano-materials to the propellant.…”

mentioning

confidence: 99%

A Review on Life Prediction Methods of Gun Barrel

Zhang

Wang

Pan

et al. 2023

J. Phys.: Conf. Ser.

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In large caliber gun system, the high speed, high temperature and high pressure gas produced by propellant combustion will cause serious erosion damage to the inner wall of barrel, which will lead to continuous decline of gun performance and termination of the maximum life of barrel. The theories and methods of gun barrel life prediction mainly involve thermodynamics, chemistry, material and machinery science and so on. This paper mainly introduces the main mechanism of gun erosion and the calculation model of gun erosion which involves the numerical solution in internal ballistic combustion process, the heat transfer and erosion calculation of gun barrel. In view of the accurate calculation of parameters such as the temperature of gunpowder gas can more accurately reflect the erosion of inner wall of gun barrel, this paper summarizes the calculation methods of the temperature, thermal physical property parameters and convective heat transfer coefficient of high temperature and high pressure gas in gun barrel. In order to determine the erosion wear quantity and study the effect of heat input on the erosion process of inner wall of gun, erosion experiments are usually required. At present, the common erosion experiments mainly include the measurement of erosion quantity with semi-closed explosive device and the change of surface characteristics of gun steel target with laser pulse heating. By analyzing the criterion of barrel life, the establishment method of barrel life prediction model is studied deeply, and the main barrel life prediction model is introduced, which is convenient to guide engineering application.

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Modeling and simulation of bullet-barrel interaction process for the damaged gun barrel

Cited by 34 publications

References 5 publications

Heat Transfer Modelling and Simulation of a 120 mm Smoothbore Gun Barrel During Interior Ballistics

Heat Transfer Modelling and Simulation of a 120 mm Smoothbore Gun Barrel During Interior Ballistics

Simulation Study on the Impact Response of Barrels with Different Rifling Profiles during Bullet Engraving

A Review on Life Prediction Methods of Gun Barrel

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