OS-E: 0850 V-Bracket using RADOPT

Demonstrates topology optimization of a V-bracket with RADOPT technique, using OptiStruct. RADOPT is Radioss optimization using OptiStruct. The equivalent static load method (ESLM) is used to perform the optimization run here.



Figure 1. FE-Model

Model Description

Conduct a topology optimization of the V-bracket which is undergoing a compression loading (force applied in negative Y-direction), and the design space (yellow) in Figure 1.
FE Model
Elements Types
HEXA
RBE2
The linear material properties are:
MAT1
Young’s Modulus
2.1E5 MPA
Poisson's Ratio
0.3
Density
7.9E-9

Results

Based upon these findings, a topology optimization, the Design Objective and Design Constraint satisfied (Figure 2) and also design change on the V-bracket in Figure 3 are found.


Figure 2. Design Objective and Design Constraint


Figure 3. Element Density Results

Model Files

The model files used in this example include:

<install_directory>/hwsolvers/demos/optistruct/examples
  • /hook_opt_0001.rad
  • /hook_opt_0000.rad
  • /hook_opt.rad