SS-T: 4001 Buckling Linear Analysis

Perform buckling linear analysis on an I-section beam.

Prerequisites
Some features used in this tutorial are only available in the SimSolid Advanced version. Switch to Advanced to complete this tutorial.
Purpose
SimSolid performs meshless structural analysis that works on full featured parts and assemblies, is tolerant of geometric imperfections, and runs in seconds to minutes. In this tutorial, you will do the following:
  • Learn how to create buckling linear analysis in SimSolid.
Model Description
The following model files are needed for this tutorial:
  • buckling.ssp
Figure 1.


The project file has the following specifications:
  • Material is set to Steel for all parts.

Open Project

  1. Start a new SimSolid session.
  2. On the main window toolbar, click Open Project .
  3. In the Open project file dialog, choose buckling.ssp
  4. Click OK.

Create Structural Linear Analysis

On the main window toolbar, click Structural analysis→Structural linear
The new analysis appears in the Project Tree under Design study 1 and the Analysis Workbench opens.

Create Immovable Support

  1. In the Analysis Workbench, click Immovable Support .
  2. In the dialog, verify the Faces radio button is selected.
  3. Select the Add tangent faces checkbox.
  4. In the modeling window, select the face shown in Figure 2.
    Figure 2.


  5. Click OK.

Create Buckling Force

  1. In the Analysis Workbench, click Force→Force/Displacement.
  2. In the dialog, ensure the Faces radio button is selected.
  3. Select the Add tangent faces checkbox.
  4. In the modeling window, select the face shown in Figure 3.
    Figure 3.


  5. For Z direction Force, enter -100 N (compressive load).
  6. Click OK.

Create Buckling Linear Analysis

  1. On the main window toolbar, click Structural Analysis→Buckling linear.
    The new analysis (Buckling 1, linked to Structural 1) appears in the Project Tree under Design Study 1 and the Analysis Workbench opens.
  2. In the dialog, select Structural 1.
  3. For Number of modes to find, enter 6.
  4. Click OK.

Edit Solution Settings

  1. In the Analysis branch of the Project Tree, double-click on Solution settings.
  2. In the Solution settings dialog, for Adaptation select Global+Local in the drop-down menu.
  3. Click OK.

Run Design Study

Solve all analyses in the design study.

  1. In the Project Tree, select Design study branch.
  2. Click Run All Analyses .
  3. In the Solver Manager, verify all analyses are selected.
  4. Click Solve.
    SimSolid runs all analyses in the design study branch. When finished, a Results branch for each analysis appears in the Project Tree.

Review Results

  1. Review the results for Design Study 1.
    The results show Part 1 buckles first at a load factor of ~17.5.
  2. To obtain the approximate buckling load, multiply the buckling factor by the buckling load.
    In this case, 17.5 × 100 N = 1750 N buckling load.