ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE
TypeModel data
LevelPartPart instanceAssembly
Abaqus/CAEProperty module and
Interaction module; supported only
for linear behavior independent of field variables. For nonlinear behavior or
to include field variables, model connectors in the
Interaction
module.
Required parameter if the behavior of dashpot elements is being
defined
- ELSET
Set this parameter equal to the name of the element set containing the
dashpot elements for which this behavior is being defined.
Optional parameters
- DEPENDENCIES
Set this parameter equal to the number of field variable dependencies
included in the definition of the dashpot coefficient, in addition to
temperature. If this parameter is omitted, it is assumed that the dashpot
coefficient is independent of field variables.
See Material Data Definition for more information.
- NONLINEAR
Include this parameter to define nonlinear dashpot behavior. Omit this
parameter to define linear dashpot behavior.
- ORIENTATION
This parameter applies only to
Abaqus/Standard
analyses.
If the option is being used to define the behavior of DASHPOT1 or DASHPOT2 elements, this parameter can be used to refer to an orientation
definition so that the dashpot is acting in a local system. Set this parameter
equal to the name of the
ORIENTATION definition (Orientations).
- RTOL
This parameter applies only to
Abaqus/Explicit
analyses.
Set this parameter equal to the tolerance to be used for regularizing the
material data. The default is RTOL=0.03. See
Material Data Definition
for a discussion of data regularization.
Data lines to
define linear dashpot behavior for DASHPOTA or ITS elements
- First
line
Enter a blank line.
- Second line
Dashpot coefficient (force per relative velocity).
In an
Abaqus/Standard
analysis this field corresponds to frequency (in cycles per time, for
STEADY STATE DYNAMICS, DIRECT and
STEADY STATE DYNAMICS, SUBSPACE PROJECTION analyses only). Leave this field blank in an
Abaqus/Explicit
analysis.
Temperature.
First field variable.
Second field variable.
Etc., up to five field variables.
- Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than five)
Sixth field variable.
Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to
define the dashpot coefficient as a function of frequency, temperature, and
other predefined field variables.
Data lines to
define nonlinear dashpot behavior for DASHPOTA or ITS elements
- First
line
Enter a blank line.
- Second line
Force.
Relative velocity.
Temperature.
First field variable.
Second field variable.
Etc., up to five field variables.
- Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than five)
Sixth field variable.
Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to
define the dashpot coefficient as a function of temperature and other
predefined field variables.
Data lines to
define linear dashpot behavior for DASHPOT1, DASHPOT2, or JOINTC elements
- First
line
Give the degree of freedom with which the dashpots are associated at their
first nodes or, for JOINTC elements, the degree of freedom in the local corotational system
for which the dashpot behavior is being defined.
For DASHPOT2 elements give the degree of freedom with which the dashpots are
associated at their second nodes.
If the ORIENTATION parameter is included on the
DASHPOT option when defining dashpot elements or on the
JOINT option when defining joint elements, the degrees of
freedom specified here are in the local system defined by the
ORIENTATION option referenced.
- Second
line
Dashpot coefficient (force per relative velocity).
Frequency (in cycles per time, for
STEADY STATE DYNAMICS, DIRECT and
STEADY STATE DYNAMICS, SUBSPACE PROJECTION analyses only).
Temperature.
First field variable.
Second field variable.
Etc., up to five field variables.
- Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than five)
Sixth field variable.
Etc., up to eight variables per line.
Repeat this set of data lines as often as necessary to
define the dashpot coefficient as a function of frequency, temperature, and
other predefined field variables.
Data lines to
define nonlinear dashpot behavior for DASHPOT1, DASHPOT2, or JOINTC elements
- First
line
Give the degree of freedom with which the dashpots are associated at their
first nodes or, for JOINTC elements, the degree of freedom in the local corotational system
for which the dashpot behavior is being defined.
For DASHPOT2 elements give the degree of freedom with which the dashpots are
associated at their second nodes.
If the ORIENTATION parameter is included on the
DASHPOT option when defining dashpot elements or on the
JOINT option when defining joint elements, the degrees of
freedom specified here are in the local system defined by the
ORIENTATION option referenced.
- Second
line
Force.
Relative velocity.
Temperature.
First field variable.
Second field variable.
Etc., up to five field variables.
- Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than five)
Sixth field variable.
Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to
define the dashpot coefficient as a function of temperature and other
predefined field variables.