Analysis of the effect of bore centerline on projectile exit conditions in small arms |
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Institution: | 1. College of Engineering, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand;2. Novacam Technologies Inc., 277 Lakeshore Road Suite #4, Pointe-Claire, Quebec, H9S 4L2, Canada |
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Abstract: | Most finite element models of small arms focus on an idealized barrel, typically one with a perfectly straight bore centerline. Using five different experimentally measured bore centerlines, this investigation analyzes the effect centerline nonlinearity has on projectile exit conditions. This includes the effect of rotating a centerline through several orientations. Modeled using Abaqus/Explicit, this dynamic analysis simulates a single firing cycle for each centerline. Projectile jump is calculated for each model as a measure of the effects of warped centerlines. The warped centerlines have a small effect on barrel dynamics. |
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Keywords: | Finite element analysis Small arms Barrel dynamics Bore centerline |
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