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Snap cover

This simulation tutorial will guide you through:

  • Applying force loads to the hooks of a snap cover
  • Running a simulation
  • Viewing the stress in the simulation results

To get started, you’ll need to download snap-cover.step to your computer.

Snap cover


Looking for a video? Check out Connecting rod. It's a different model, but the steps shown there are broadly the same as the steps described below.

Import the CAD file

  1. In OnScale Solve, from the Projects tab of the dashboard, create a new project.
  2. In the Modeler, import the CAD file. Select Millimeters as the length unit.

Assign a material

  1. Using either the tree or the 3D viewer, select Case.
  2. Using the Material dropdown in the properties panel, assign Acrylic Plastic to this part.

Add a fixture

  1. Using either the tree or the 3D viewer, select Face 7.
  2. Select the Physics tab.
  3. In the toolbar, select > to fix the surface.

Add force loads

  1. Using either the tree or the 3D viewer, select Face 43 (the outside surface of one of the hooks).

    The title of the tree is a dropdown. Select it and then select Model Tree to view the list of faces. This lets you select a face while remaining on the Physics tab.

  2. In the toolbar, select > to add a force load.
  3. In the properties panel, for Amplitude, enter 1 and then select Done.
  4. Repeat steps 1 to 3 for the outside surfaces of the remaining hooks (Face 44, Face 103, and Face 124).

Run a simulation

  1. Select the Simulator tab.
  2. In the properties panel, select MESH & ESTIMATE. This automatically meshes your model, estimates how long the simulation will take to run, and estimates what the likely core-hour cost will be.
  3. Once the meshing and estimation process has finished, use the cost–time slider to select the level of computational resource that you want to use for this simulation.

    By using additional computational resources for the simulation (and hence spending additional core-hours), the simulation can be completed faster.

  4. Select RUN to run the simulation.

Analyze the results

  1. Once the simulation has finished, select View results to open the results in the Results tab.
  2. In the controls, expand Dataset and then select Von Mises Stress