Istf |
Interface stiffness
definition flag.
- = 0
- Set to 1000.
- =2
- Interface stiffness is the average of the master and
slave stiffness.
- =3
- Interface stiffness is the maximum of the master and
slave stiffness.
- =4
- Interface stiffness is the minimum of the master and
slave stiffness.
- =5
- Interface stiffness is the master and slave stiffness in
series.
- 6
- Interface stiffness is the minimum of the master and
slave stiffness with special adjustment to improve
convergence for implicit solution.
- = 1000 (Default)
- Interface stiffness is only based on the master side
stiffness.
(Integer)
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Irem_i2 |
Flag for deactivating the
slave node, if the same contact pair (nodes/segment) has been
defined in interface TYPE2.
- =0
- Set to 1.
- =1 (Default)
- Slave nodes in /INTER/TYPE2 tied
contacts are removed from this contact.
- =3
- No change to slave nodes.
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Idel |
Node and segment deletion flag.
- = 0
- Set to 1000.
- = 1
- When all the elements (4-node shells, 3-node shells,
solids) associated to one segment are deleted, the
segment is removed from the master side of the
interface. It is also removed in case of explicit
deletion using Radioss
Engine keyword /DEL in the Engine
file.
- Additionally, non-connected nodes are removed from the
slave side of the interface.
- = 2
- When a 4-node shell, a 3-node shell or a solid element
is deleted, the corresponding segment is removed from
the master side of the interface. It is also removed in
case of explicit deletion using Radioss Engine keyword
/DEL in the Engine file.
- Additionally, non-connected nodes are removed from the
slave side of the interface.
- = 1000 (Default)
- No deletion.
Note: Using Idel
results in higher CPU cost.
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Iedge |
Edge definition flag.
- = 0
- Set to 1000.
- = 1
- Edge to edge contact is activated using the external
border edges from surf_ID1
and surf_ID2
and sharp edges between contact segments.
- = 1000 (Default)
- No edge to edge contact.
(Integer)
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Igap0 |
Gap modification flag for
slave shell nodes on the free edges.
- = 0
- Set to 1000.
- = 1
- Set gap to zero for the slave shell nodes.
- = 1000 (Default)
- No change.
(Integer)
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Ipen0 |
Initial penetration
detection flag.
- = 0
- Set to 1000.
- = 1
- Including self-impact in each part.
- = 1000 (Default)
- Excluding self-impact in each part.
(Integer)
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Inacti |
Initial penetration flag.
- = 0
- Set to 1000.
- = -1
- All initial penetrations are taken into account.
- = 5
- The master segment is shifted by the initial penetration
value
if
, then
, where
is the initial
penetration.
- = 1000 (Default)
- Only tiny initial penetrations (1.0e-08) will be taken
into account.
(Integer)
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