Define an initial stress or strain

The Initial Stress/Strain command lets you define a stress or strain tensor field that represents the mechanical internal load effects that exist prior to the start of a solve. This example shows how to create an On Nodes type of initial stress or strain load.

1. Choose Home tab→Loads and Conditions group→Initial Stress/Strain .

2. In the Initial Stress/Strain dialog box, from the Type list, select On Nodes.

3. In the Model Object group, click Select Object and select the geometry or FEM entities to which the initial stress or strain will be applied.

4. In the Direction group, select the coordinate system to use to define the load.To define the load in terms of the coordinate system used to define the field, select Inferred from Field.To define the load in terms of the existing global coordinate system, select Absolute.To define the load in terms of the existing material coordinate system, select Material.To define the load in terms of a local Cartesian, cylindrical, or spherical coordinate system that you specify:Select Cartesian, Cylindrical, or Spherical.Click CSYS Dialog to use the options in the CSYS dialog box to create the coordinate system, or select an option from the CSYS list to specify the method to use to define the coordinate system, such as Inferred or Plane and Vector.For more information, see CSYS dialog box.

5. In the Components group, from the Tensor Type list, select either Stress or Strain.

6. Select Specify Field and either select a field or create a new field.For more information, see Using fields and expressions to define boundary conditions.

7. Click OK.

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Define an initial stress or strain, Simcenter 3D 2021.1 Series

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