3D Connexion Version 6.6

*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 fea tures 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 Analy sis User’s Manual

Required parameters:

ELSET

Set this parameter equal to the name of the element set containing the ele ments over which a given

nonstructural mass is to be distributed.

UNITS

Set UNITS=TOTALMASS to specify the nonstructural mass in the units of “mass.”

Set UNITS=MASS PER VOLUME tospecify the nonstructural mass in the units of “mass per

unit volume.”

Set UNITS=MASS PER AREA to specify the nonstructural mass in the unit so f“ mass per

unit area.” Thisvalue is valid only for an element set that contains conventional shells, membranes,

and/or surface elements.

Set UNITS=MASS PER LENGTH to specify the nonstructuralmass in the units of “mass per

unit length.” This value is valid only for an element set that contains beam and/or truss elem ents.

Optional parameter:

DISTRIBUTION

This parameter is relevant only when UNITS=TOTALMASS.

Set DISTRIBUTION=MASS PROPORTIONAL(default) to distribute the total nonstructural

mass among the members of the element set region in proportion to the e lement 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:

Printed on: