OS-E:0900 Seam Weld Fatigue Analysis and Size Optimization of a Frame Structure
Demonstrates Seam weld fatigue optimization using OptiStruct.
Figure 1. FE-Model
Model Description
The objective is to minimize the mass of the structure using size optimization, by using
fatigue life and mass as response (Figure 1).
- FE Model
- Elements Types
- CQUAD
The linear material properties are:
Figure 2. Size Optimization Plot and Fatigue Life Plot
- MAT1
- Young’s Modulus
- 2.1E5 MPA
- Poisson Ratio
- 0.3
- Density
- 7.9E-9
Figure 2. Size Optimization Plot and Fatigue Life Plot
Results
The final design of the fatigue analysis and size optimization of the frame has 30% mass saving.
Model Files
The model files used in this example include:
<install_directory>/hwsolvers/demos/optistruct/examples/frame_seam2_opt.fem