Abstract: Radial forging is an advanced manufacturing method for barrel. After the polycrystalline material of barrel is forged, the preferred orientation of the materials grain forms texture which presents the anisotropy phenomenon macroscopically. This phenomenon can not be simulated using the common finite element analysis (FEA) method. A macroscopic barrel radial forging FEA model and a microscopic polycrystalline plasticity FEA model are established based on ABAQUS code, the mathematical software Matlab and the programming language Python. The multi-scale method is used to program the boundary conditions inheriting from macro-mechanics state to meso-mechanics state which make the size of grain as reality. The pole figures of forged polycrystalline material and the orientation distribution function (ODF) figures are drawn by Matlab, which are used to analyze the orientation change of grain in the microscopic polycrystalline plasticity FEA model. The XRD experiment is used to validate the accuracy of the simulated results. A research method to connect macroscopic forging process and microscopic texture is presented, which provides a new way to predict the mechanical property of barrel after forging.

Key words: ordnance science and technology, radial forging of barrel, finite element analysis, crystalline plasticity model, texture