ABAQUS Volume II: I–Z - Manual (Page 215)

*NONSTRUCTURAL MASS
14.13 *NONSTRUCTURAL MASS: Specify mass contribution to the model from
nonstructural features.
This option is used to include the mass contribution from nonstructural features in the model. The
nonstructural mass can be applied over an element set that contains solid, shell, membrane, surface, beam,
or truss elements.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Part, Part instance, Assembly
Reference:
•
“Nonstructural mass definition,” Section 2.6.1 of the ABAQUS Analysis User’s Manual
Required parameters:
ELSET
Set this parameter equal to the name of the element set containing the elements over which a given
nonstructural mass is to be distributed.
UNITS
Set UNITS=TOTAL MASS to specify the nonstructural mass in the units of “mass.”
Set UNITS=MASS PER VOLUME to specify the nonstructural mass in the units of “mass per
unit volume.”
Set UNITS=MASS PER AREA to specify the nonstructural mass in the units of “mass per
unit area.” This value is valid only for an element set that contains conventional shells, membranes,
and/or surface elements.
Set UNITS=MASS PER LENGTH to specify the nonstructural mass in the units of “mass per
unit length.” This value is valid only for an element set that contains beam and/or truss elements.
Optional parameter:
DISTRIBUTION
This parameter is relevant only when UNITS=TOTAL MASS.
Set DISTRIBUTION=MASS PROPORTIONAL (default) to distribute the total nonstructural
mass among the members of the element set region in proportion to the element structural mass.
The underlying structural density over the element set region is scaled uniformly; therefore, the
center of mass for the element set region is not altered.
14.13–1
ABAQUS Version 6.1 Module: ID:
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