COMSOL 6.3 - Edge Load

Add an as a force distributed along an edge (3D models) or boundary (2D models).

The is selected by default. The list contains all applicable coordinate systems in the model. Prescribed loads are specified along the axes of this coordinate system. See Coordinate Systems and in the COMSOL Multiphysics Reference Manual.

Force

Select a — , , , , or . Enter values or expressions for the components.


Load Type	variable	SI unit	Geometric Entity Level	Space Dimension (Components)
Force per reference volume	fV	N/m3	edges boundaries	3D (x, y, z) 2D (x, y)
Force per deformed volume	fv	N/m3	edges boundaries	3D (x, y, z) 2D (x, y)
Force per reference length	fL	N/m	edges boundaries	3D (x, y, z) 2D (x, y)
Force per deformed length	fl	N/m	edges boundaries	3D (x, y, z) 2D (x, y)
Total force	Ftot	N	edges boundaries	3D (x, y, z) 2D (x, y)

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When is selected, the given load is multiplied by the cross-section area. This option is useful for modeling body loads like gravity or centrifugal loads.

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After selecting a , the list normally only contains . When combining the Truss interface with another physics interface, it is also possible to choose a predefined load from this list.

Linear Buckling

To display this section, click the button (

) and select in the dialog.

If you are performing a linear buckling analysis with a combination of live and dead loads, select the checkbox to indicate that the load contributions from this node are constant. The default is that a load is proportional to the load factor.


	For more information about live and dead loads, see Buckling Analysis.

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You can add the Phase subnode to specify the phase of this load in a frequency domain analysis.

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You can specify this load to be a Harmonic Perturbation in a frequency domain analysis.

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You can assign this load to a load group. See Load Cases in the Structural Mechanics Modeling chapter.

Location in User Interface

Context Menus

Ribbon

Physics tab with selected: