Estimation of the effect of the runner parameters on the quality of manufacturing the aerospace bracket from composite material reinforced by short fibers

The paper describes mathematical modeling technique of the molding of non-Newtonian multiphase fluids in the Moldex3D. It allows to assess the influence of the runner parameters on the quality of manufacturing the aerospace spatial designs from composite materials reinforced by short fibers. The computational mesh for the mold, taking into account the molding attributes, is constructed by the joint use of ANSYS Meshing and Rhinoceros. The paper describes the modernization of the mold. The dimensions, shape and location of the runner were selected, ensuring a uniform flow of the mix into the mold and minimizing the number of weld lines. The question of the use of air traps to remove the blocking air from the design during molding is considered. The results allow to make tools, to select the main technological parameters of the molding and to construct a multilevel model of the stress-strain state of the bracket, taking into account anisotropy.