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Using an external field to define distributions and initial conditions
Required parameters
-
FILE
- Set this parameter equal to the name of the output database
(.sim) file from which results data are to be
read.
Optional parameters
-
INC
-
Set this parameter equal to the increment from which to import field
values.
The INC parameter and the
TIME parameter are
mutually exclusive. This parameter is ignored if the
MODE parameter is
specified.
If this parameter is omitted and neither the
MODE parameter or
the TIME parameter
is specified, the field values are read from the last increment of
the specified step or from the last step if the
STEP parameter is
omitted.
-
MODE
-
Set this parameter equal to the mode number from which to import
field values.
The MODE parameter and the
TIME parameter are
mutually exclusive. If the
STEP parameter is
omitted, the last step from the previous analysis is used.
-
STEP
-
Set this parameter equal to the step from which to import field
values.
The STEP parameter and the
TIME parameter are
mutually exclusive.
If this parameter is omitted and the
TIME parameter is
not specified, the field values are read from the last step.
-
TIME
-
Set this parameter equal to the time at which to import field values.
Linear interpolation is performed using two saved time points of the
previous analysis to obtain the field values at the specified time.
The time is specified as the total time.
The TIME parameter and the
INC and
STEP parameters
are mutually exclusive.
If the TIME,
STEP, and
INC parameters are
omitted, the last stored frame is imported.
Data lines to use an external field to define distributions and
initial conditions
- First
line
-
Name space of the region in the model used in the current
analysis. Use NODES to indicate that the region is a node
set; use ELEMENTS to indicate that the region is an element
set. If omitted, the default is ELEMENTS. Name of the region (node set or element set) defined in
the current model where imported fields are specified. If
omitted, imported fields are specified on the entire model
in the current analysis. The region can be either a
node set or an element set regardless of the location where
imported fields are specified. When a nodal field is
specified on an element set, the field data are specified on
all nodes of the elements in the specified element set. When
an element field is specified on a node set, the field data
are specified on all elements containing the nodes in the
node set; elements connected to nodes that are not in the
node set are not included. Identifying key for the field imported when EXTERNAL FIELD
is used with the following initial conditions:
- INITIAL CONDITIONS,
TYPE=ESDV;
use
ESDVn
as the identifying key for the
nth element
solution-dependent variable.
- INITIAL CONDITIONS,
TYPE=HARDENING
with the
NUMBER BACKSTRESSES
parameter specified; use
ALPHAn
as the identifying key for the
nth initial
backstress.
- INITIAL CONDITIONS,
TYPE=SOLUTION;
use
SDVn
as the identifying key for the
nth
solution-dependent state variable.
Otherwise, not used.Name space of the region in the model used in the previous analysis. Use NODES
to indicate that the region is a node set; use ELEMENTS to
indicate that the region is an element set. If omitted, the
default is ELEMENTS. Name of the region (node set or element set) defined in the previous model from
which results data are to be imported. If omitted, results
data are imported from the entire model in the previous
analysis. The region can be either a node set or an
element set regardless of the location of the results data
to be imported. When a node-based field is imported and an
element set is specified, the node-based field is extracted
from nodes of the elements in the specified element set.
When an element-based field is imported and a node set is
specified, the element field is extracted from elements
containing the nodes in the node set; elements connected to
nodes that are not in the node set are not included.
Output variable Identifying keys for the results field data imported from the
referenced output database (.sim) file.
In addition, you can specify variables that can be read
from the output database (.sim) file
but for which you cannot request output. For example, you
cannot request output for the variable ORIENT, but it is
found in the output database (.sim)
file if an orientation field is associated with any of the
other results fields. Specify the name of a mapping controls definition. If
omitted, default mapping controls are used. Specify the name of a field operations definition.
Repeat this data line as often as necessary to define
imported data for element sets or node sets.
Using an external field to define history-dependent fields in Abaqus/Standard
Required parameters
-
FILE
- Set this parameter equal to the name of the output database
(.sim) file from which results data are to be
read.
Optional parameters
-
AMPLITUDE
- This parameter is meaningful only when importing fields at a
specified time.
Set
AMPLITUDE=RAMP
(default) to ramp the incoming fields over the analysis
step. Set
AMPLITUDE=STEP
to apply the fields at the beginning of the analysis step. The
AMPLITUDE
parameter and the
TSTART and
TEND parameters
are mutually exclusive.
-
STEP
-
Set this parameter equal to the analysis step from which to import field values when
reading from the output database (.sim) file of
a previous analysis.
If this parameter is specified, the
TIME parameter and
the TSTART and
TEND parameters
refer to step time in the previous analysis.
If this parameter is omitted, the
TIME parameter and
the TSTART and
TEND parameters
refer to total time in the previous analysis.
If this parameter is specified, and the
TIME parameter and
the TSTART and
TEND parameters
are omitted, the last saved values at the end of the specified step
are imported.
-
TEND
-
Set this parameter equal to the end time to import fields over a specified time range. Abaqus linearly interpolates fields between two saved time points in the
previous analysis output file to obtain the field values at the
specified time. The time is specified as the step time when the
STEP parameter is
used; otherwise, total time is assumed.
-
TIME
-
Set this parameter equal to the time at which to import field values at a specific time.
Linear interpolation is performed using two saved time points of the
previous analysis to obtain the field values at the specified time.
The time is specified as the step time when the
STEP parameter is
used; otherwise, total time is assumed.
-
TSTART
-
Set this parameter equal to the start time to import fields over a specified time range.
Abaqus linearly interpolates fields between two saved time points in the
previous analysis output file to obtain the field values at the
specified time. The time is specified as the step time when the
STEP parameter is
used; otherwise, total time is assumed.
Data lines to use an external field to define history-dependent
fields
- First line
-
Name space of the region in the model used in the current
analysis. Use NODES to indicate that the region is a node
set; use ELEMENTS to indicate that the region is an element
set; or use SURFACE to indicate that the region is a
surface. If omitted, the default is ELEMENTS. Name of the region (node set, element set, or surface) defined in the current
model where imported fields are specified. Identifying key for the field imported. The keys are defined in Identifying the Target and Source Fields. Name space of the region in the model used in the previous analysis. Use NODES
to indicate that the region is a node set; use ELEMENTS to
indicate that the region is an element set; or use SURFACE
to indicate that the region is a surface. If omitted, the
default is ELEMENTS. Name of the region (node set, element set, or surface) defined in the previous
model from which results data are to be imported. If
omitted, results data are imported from the entire model in
the previous analysis. The region can be either a node
set, an element set, or a surface regardless of the location
where imported fields are specified. When a node-based field
is imported and an element set or surface is specified, the
node-based field is extracted from the nodes of the elements
in the specified element set or facets belonging to the
specified surface. When an element-based field is imported
and a node set is specified, the element field is extracted
from elements containing the nodes in the node set; elements
connected to nodes that are not in the node set are not
included. Identifying keys for the results field data imported from the referenced output
database (.sim) file. The keys are
defined in Abaqus/Standard Output Variable Identifiers. Not used. - Specify the name of an optional field operations definition.
Repeat this data line as often as necessary to import
external fields.
Using an external field in a node-based submodel analysis in Abaqus/Standard
Required parameters
-
FILE
- Set this parameter equal to the name of the output database
(.sim) file for the global analysis.
Optional parameters
-
AMPLITUDE
- This parameter is meaningful only when importing fields at a
specified time.
Set
AMPLITUDE=RAMP
(default) to ramp the incoming fields over the analysis
step. Set
AMPLITUDE=STEP
to apply the fields at the beginning of the analysis step. The
AMPLITUDE
parameter and the
TSTART and
TEND parameters
are mutually exclusive.
-
STEP
-
Set this parameter equal to the analysis step from which to import field values when
reading from the output database (.sim) file of
a previous analysis.
If this parameter is specified, the
TIME parameter and
the TSTART and
TEND parameters
refer to step time in the previous analysis.
If this parameter is omitted, the
TIME parameter and
the TSTART and
TEND parameters
refer to total time in the previous analysis.
If this parameter is specified, and the
TIME parameter and
the TSTART and
TEND parameters
are omitted, the last saved values at the end the specified step are
imported.
-
TEND
-
Set this parameter equal to the end time to import fields over a specified time range. Abaqus linearly interpolates fields between two saved time points in the
previous analysis output file to obtain the field values at the
specified time. The time is specified as the step time when the
STEP parameter is
used; otherwise, total time is assumed.
-
TIME
-
Set this parameter equal to the time at which to import field values at a specific time.
Linear interpolation is performed using two saved time points of the
previous analysis to obtain the field values at the specified time.
The time is specified as the step time when the
STEP parameter is
used; otherwise, total time is assumed.
-
TSTART
-
Set this parameter equal to the start time to import fields over a specified time range.
Abaqus linearly interpolates fields between two saved time points in the
previous analysis output file to obtain the field values at the
specified time. The time is specified as the step time when the
STEP parameter is
used; otherwise, total time is assumed.
Data lines to use an external field in a node-based submodel
analysis
- First line
-
Use NODES to indicate that the region is a node set. If
omitted, the default is NODES. Name of the region (node set) defining the driving
nodes of the submodel. Identifying key for the field imported. The keys are defined in Identifying the Target and Source Fields. Use ELEMENTS to indicate that the region is an element set. If omitted, the
default is ELEMENTS. Name of the region (element set ) defined in the
previous model from which results data are to be imported.
If omitted, results data are imported from the entire model
in the previous analysis. Identifying keys for the results field data imported from the referenced output
database (.sim) file. The keys are
defined in Abaqus/Standard Output Variable Identifiers. Not used. - Specify the name of an optional field operations definition.
Repeat this data line as often as necessary to import
external fields.
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