| Istf |
Interface stiffness
definition flag.
- = 0
- Set to 1000.
- =2
- Interface stiffness is the average of the main and
secondary stiffness.
- =3
- Interface stiffness is the maximum of the main and
secondary stiffness.
- =4
- Interface stiffness is the minimum of the main and
secondary stiffness.
- =5
- Interface stiffness is the main and secondary
stiffness in series.
- 6
- Interface stiffness is the minimum of the main and
secondary stiffness with special adjustment to
improve convergence for implicit solution.
- = 12
- Nitsche method is used with the average of the main
and secondary stiffness.
- = 13
- Nitsche method is used with the maximum of the main
and secondary stiffness.
- = 14
- Nitsche method is used with the minimum of the main
and secondary stiffness.
- = 1000 (Default)
- Interface stiffness is only based on the main side
stiffness.
(Integer) |
|
| Irem_i2 |
Flag for deactivating
the secondary node, if the same contact pair (nodes/segment) has
been defined in interface TYPE2.
- =0
- Set to 1.
- =1 (Default)
- Secondary nodes in /INTER/TYPE2
tied contacts are removed from this contact.
- =3
- No change to secondary nodes.
|
|
| 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 main 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 secondary 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 main 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 secondary side of the interface.
- = 1000 (Default)
- No deletion.
Note: Using Idel
results in higher CPU cost.
|
|
| 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) |
|
| Igap0 |
Gap modification flag
for secondary shell nodes on the free edges.
- = 0
- Set to 1000.
- = 1
- Set gap to zero for the secondary shell nodes.
- = 1000 (Default)
- No change.
(Integer) |
|
| 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) |
|
| Inacti |
Initial penetration flag.
- = 0
- Set to 1000.
- = -1
- All initial penetrations are taken into
account.
- = 5
- The main 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) |
|
