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Author(s): Sebastian Vecchi, ANSYS Inc.
Problem Specification
1. Pre-Analysis & Start-Up
2. Geometry
3. Mesh
4. Physics Setup
5. Results
6. Verification & Validation
Physics Set-Up
Specify Material
Press Physics Region under Physics Definition, AIM should detect the body and highlight it. Now that we have the physics region defined, press next step and a dropdown menu should appear. Since the objective is now to select a material press Add > Physics Modeling > Material Assignment > Structural Steel. The entire object is now made of structural steel and we can add our other constraints.
Boundary Conditions / Forces
The first conditions that needs to be specified for a structural simulation are supports, in this case the supports will exist on the symmetry planes where we “cut” the model into quarters. Next to Structural Conditions press Add > Support then select one of the cut sides as the location and the Type will be User Specified. Edit the Translation drop down menus until there is only one arrow going into our model and repeat for the other side. This creates a symmetrical constraint support for the shaft which allows it to deform while also not translating or rotation from its location.
Next the pressure is added to the outermost face of the shaft by selecting the pressure option in the add drop down menu. It was given to us as 1000 Psi but since AIM defaults pressures as compressive therefore the correct value to input is -1000 Psi.
