Stress Linearization

Use the node to define a line (stress classification line; SCL) along which a linearization of the stress state will be made. A number of result variables are created for each SCL. Add one node for each SCL along which you want to compute linearized stresses.

When a node has been added, you do not need to compute a new solution. It is sufficient to perform an to make the variables for the new SCL available.

The line selection can consist of several edges, but they are assumed to form a straight line from one free boundary to another. For 2D and 2D Axisymmetric geometries, the only input is the line selection. For 3D, you also need to specify the orientation of the local coordinate system in which the linearized stresses are represented.

The node is only available with some COMSOL products (see https://www.comsol.com/products/specifications/).

This section is present only in 3D. Here you specify the orientation of the local coordinate system in which the components of the linearized stress tensor are represented. The first direction is always along the SCL, and you indicate the second direction. The third direction is automatically formed by being orthogonal to the line and the second direction.

Select or . When a reference point is used, the second local direction will be in the plane formed by the SCL and the selected point. When an orientation vector is used, the second local direction will be directed in the plane formed by the SCL and the selected orientation. The orientation is always adjusted so that it is orthogonal to the SCL.

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For , select — or . When is used, select the reference point in the section. When is used, enter the coordinates for the reference point in the table.

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For select — or . When is used, select an edge in the geometry as orientation vector in the section. When is used, enter the orientation vector manually in the table.