This node is available with 1D components. This setting overrides the global Cross-Section Area setting made in any physics interface that uses this feature. For 2D components, see Change Thickness (Out-of-Plane).

Use the Change Cross Section node to set the cross-section area for specific geometric entities.

Enter a value or expression for the Cross-section area A. The default value of one unit area is typically not representative for the actual domain. Instead, it describes a unit area that makes the 1D equation identical to the equation used for 3D components.