**BFCUM**, * Lab*,

`Oper`

`FACT`

`TBASE`

Compatible Products: – | Pro | Premium | Enterprise | Ent PP | Ent Solver | –

`Lab`

Valid body load label. If ALL, use all appropriate labels.

Discipline Body Load Label Label Description Structural TEMP temperature FLUE fluence Thermal HGEN heat generation rate Magnetic TEMP temperature JS current densities MVDI magnetic virtual displacements flag Electric TEMP temperature CHRGD charge density Diffusion DGEN diffusing substance generation rate `Oper`

Accumulation key:

**REPL**—

Subsequent values replace the previous values (default).

**ADD**—

Subsequent values are added to the previous values.

**IGNO**—

Subsequent values are ignored.

`FACT`

Scale factor for the nodal body load values. Zero (or blank) defaults to 1.0. Use a small number for a zero scale factor. The scale factor is not applied to body load phase angles.

`TBASE`

Used (only with

= TEMP) to calculate the temperature used in the add or replace operation (see`Lab`

) as:`Oper`

Temperature =

+`TBASE`

* (`FACT`

-`T`

)`TBASE`

where

is the temperature specified on subsequent`T`

**BF**commands.defaults to zero.`TBASE`

Allows repeated nodal body force loads to be replaced, added,
or ignored. Nodal body loads are applied with the **BF** command. Issue the **BFLIST** command to list the
nodal body loads. The operations occur when the next body loads are
defined. For example, issuing the **BF** command with
a temperature of 250 after a previous **BF** command
with a temperature of 200 causes the new value of the temperature
to be 450 with the add operation, 250 with the replace operation,
or 200 with the ignore operation. A scale factor is also available
to multiply the next value before the add or replace operation. A
scale factor of 2.0 with the previous "add" example results in a temperature
of 700. The scale factor is applied even if no previous values exist.
Issue **BFCUM**,STAT to show the current label, operation,
and scale factors. Solid model boundary conditions are not affected
by this command, but boundary conditions on the FE model are affected.

**Note:** FE boundary conditions may still be overwritten by existing
solid model boundary conditions if a subsequent boundary condition
transfer occurs.

**BFCUM** does not work for tabular boundary
conditions.

This command is also valid in PREP7.