Open AccessTOPOLOGICAL OPTIMIZATION OF SHORT FIBERS REINFORCED COMPOSITE STRUCTURES CONSIDERING THE MATERIAL ANISOTROPY DETERMINED BY THE CALCULATION OF THEIR INJECTION MOLDING PROCESS
Author(s) -
E.I. Kurkin,
E.A. Kishov,
O.E. Lukyanov,
Oscar Ulises Espinosa Barcenas
Publication year - 2020
Publication title -
izvestiâ samarskogo naučnogo centra rossijskoj akademii nauk
Language(s) - English
Resource type - Journals
ISSN - 1990-5378
DOI - 10.37313/1990-5378-2020-22-5-114-119
Subject(s) - shearing (physics) , materials science , anisotropy , topology optimization , stiffness , molding (decorative) , composite material , topology (electrical circuits) , composite number , injection molding machine , structural engineering , computer science , mathematics , finite element method , engineering , physics , mold , quantum mechanics , combinatorics
A methodology is presented for solving the related problem of topological optimization of short-reinforced composites structures, considering the attributes of the material anisotropy by fully solving the injection molding problem. The methodology is considered on the example of optimizing a bracket loaded with a shearing force. The solution is performed in the Ansys Topology Optimization module using the Sequential Convex Programming method. The anisotropic formulation of the problem involves the calculation of the injection molding process in the Autodesk Moldflow system on a mesh reduced by intermediate iterations of topological optimization, and updating the material properties at intermediate steps of the algorithm based on a C program. It is shown that the anisotropy of the material can lead to the displacement of weld lines beyond the main load-bearing structural elements and to increase the stiffness of short-reinforced composite materials structures.