Mechanical APDL Basic Analysis Guide - Ansys

Figure 2.15 Transfers to BFK Loads to Nodes
2.5.8.3. Specifying Body Loads on Lines, Areas and Volumes
You can use the BFL, BFA, and BFV commands to specify body loads on lines, areas, and volumes of a solid
model, respectively. Body loads on lines of a solid model are transferred to the corresponding nodes of the
finite element model. Body loads on areas or volumes of a solid model are transferred to the corresponding
elements of the finite element model.
2.5.8.4. Specifying a Uniform Body Load
The BFUNIF command specifies a uniform body load at all nodes in the model. Most often, you use this
command or path to specify a uniform temperature field; that is, a uniform temperature body load in a
structural analysis or a uniform starting temperature in a transient or nonlinear thermal analysis. This is also
the default temperature at which the ANSYS program evaluates temperature-dependent material properties.
Another way to specify a uniform temperature is as follows:
Command(s): BFUNIF
GUI: Main Menu> Preprocessor> Loads> Define Loads> Apply> Structural or Thermal>
Temperature> Uniform Temp
Main Menu> Preprocessor> Loads> Define Loads> Settings> Uniform Temp
Main Menu> Solution> Define Loads> Apply> Structural or Thermal> Temperature> Uniform
Temp
Main Menu> Solution> Define Loads> Settings> Uniform Temp
2.5.8.5. Repeating a Body Load Specification
By default, if you repeat a body load at the same node or same element, the new specification replaces the
previous one. You can change this default to ignore using one of the following:
Command(s): BFCUM, BFECUM
GUI: Main Menu> Preprocessor> Loads> Define Loads> Settings> Replace vs Add> Nodal Body
Ld
Main Menu> Preprocessor> Loads> Define Loads> Settings> Replace vs Add> Elem Body Lds
Main Menu> Solution> Define Loads> Settings> Replace vs Add> Nodal Body Ld
Main Menu> Solution> Define Loads> Settings> Replace vs Add> Elem Body Lds
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2.5.8. Applying Body Loads
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