Research Article

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

Table 3

Basic data for the bullet jacket material.

Temperature (K)Density (kg/mm3)Young’s modulus (MPa)Poisson’s ratioThermal conductivity (W/(m.K))Specific heat (J/(kg·K))Coefficient of thermal expansion ()

298.150.33390.1383.3
399.150.33381.7400.2
522.150.33363.2412.4
654.150.33349.6425.8
771.150.33343.8437.5
900.150.33337.8450.3