FE Model, Load case, Integer, Scalar, Scalar
FE Model, Load case, Integer, Scalar, Scalar, 1.1.0
About this Block
What it does: Calculates the critical buckling load factors and their corresponding mode shapes, for a given Simulation Model and set of Boundary Conditions. Common uses:- Understanding the buckling modes of your model.
- The result of the buckling simulation (‘buckling load factor” property in the block’s properties) is a list of factors by which the model’s load(s) must be multiplied by to reach the critical buckling load for each mode.
- The results are ranked by the intensity of each mode, from high to low.
- You can bound the minimum and maximum eigenvalues, but it will return an error if there are no eigenvalues in that range.
- The loads are assumed to be applied slowly until the model reaches a state of equilibrium (static assumption), and the relationship between loads and displacements is assumed to be linear.
- All inertial and damping forces are neglected.
- Boundary conditions must contain a displacement restraint for at least one node. Otherwise, the model isn’t fixed in space.
- When the calculation is complete, a Head’s Up Display (HUD) will appear that allows you to visualize the block’s results. The block’s visibility must be on to see the results window.
- This is a linear buckling analysis.
- It is recommended to use a Quadratic Geometric order FE Mesh with any analysis to get the most accurate results.
Example File
Download Example: Buckling Analysis
FE Model, Load case, Integer, Scalar, Scalar
Calculate the critical buckling loads and buckling mode shapes of an FE Model subject to prescribed boundary conditions. The resulting eigenvalues are factors by which the load must be multiplied to reach the critical buckling load for that mode.Inputs
| Name | Type | Description |
|---|---|---|
| Model | FE Model | The finite element model. |
| Load case | Boundary Condition List | The restraints and applied loads. |
| Number of modes | Integer | Maximum number of modes to calculate. |
| Min eigenvalue | Scalar | Lower bound of returned eigenvalues. |
| Max eigenvalue | Scalar | Upper bound of returned eigenvalues. |
Outputs
| Type |
|---|
| Buckling Result |
FE Model, Load case, Integer, Scalar, Scalar, 1.1.0
Calculate the critical buckling loads and buckling mode shapes of an FE Model subject to prescribed boundary conditions. The resulting eigenvalues are factors by which the load must be multiplied to reach the critical buckling load for that mode.Inputs
| Name | Type | Description |
|---|---|---|
| Model | FE Model | The finite element model. |
| Load case | Boundary Condition List | The restraints and applied loads. |
| Number of modes | Integer | Maximum number of modes to calculate. |
| Min eigenvalue | Scalar | Lower bound of returned eigenvalues. |
| Max eigenvalue | Scalar | Upper bound of returned eigenvalues. |
Outputs
| Type |
|---|
| Buckling Result |