| Title |
Topological Three-dimensional Optimum Structural Design of Cantilevers using the Numerical Method Accelerating Design Parameters |
| Authors |
Lee Dong-Kyu ; Shin Soo-Mi |
| Keywords |
Topological Three-dimensional Optimum Structural Design ; Accelerated Method ; Convergence ; SIMP Method |
| Abstract |
This study presents a numerical strategy enforcing design parameters to fast converge to almost voids (?0) and solid (1) phases for three-dimensional material topology optimization problems. In computational mechanics it is not easy to deal with three-dimensional problems due to a large number of computational costs. In particular material topology optimization designs may be faced with still more difficulties since a large number of design parameters have to be used in order to produce clear optimal structural layouts for topology. The method accelerating design parameter values has already been introduced for two-dimensional material topology optimization problems and the improved optimum convergence was verified by the author's previous work1). In this study identical isotropic eight-node brick elements are used for three-dimensional finite element analyses and a SIMP (Solid Isotropic Microstructure with Penalty for Intermediate Density) method is utilized for material topology optimization. Numerical applications demonstrate this accelerated method improves convergence for three-dimensional material topological optimal designs of continuous structures. |