OS-E: 2035 Stress and Strain Responses Based on the Neuber Correction Method
The objective is to reduce the stress concentration at the fillet regions of the model by changing its shape.
![](../../../images/solvers/shape_opt_stress_strain_responses_neuber_fe_model.png)
Figure 1. FE Model with Loadcases and Loadstep
Model Files
Model Description
- Objective
- Minimize the change in mass
- Design Variables
- Shape Design Variables
This example has a half symmetric valve, which is modeled using first order tetra elements and has a force applied on it at a specific location. A shape ID is created using HyperMorph and the Shape design variables is created. A static stress response is created with Neuber correction and a mass response defined by an equation to minimize the change in the mass. A design constrain is defined for static-stress response.
Results
![](../../../images/solvers/shape_opt_stress_strain_responses_max_average.png)
Figure 2. Maximum Average Neuber Stress
![](../../../images/solvers/shape_opt_stress_strain_responses_results.png)
Figure 3. Shape Change in the Model after Optimization