/DEFAULT/INTER/TYPE2

Block Format Keyword Defines interfaces TYPE2 default values.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/DEFAULT/INTER/TYPE2
blank
    Ignore Spotflag   Isearch Idel2    
Read this input, if Spotflag=25, 27 or 28:
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
            Istf    

Definitions

Field Contents SI Unit Example
Ignore Flag to ignore secondary nodes if no main segment found. 13 14
=0
Set to 1000.
=1
Secondary nodes with no main segment found during the Starter are deleted from the interface.
=2
Secondary nodes with no main segment found during the Starter are deleted from the interface, new calculation for dsearch, if dsearch= 0.
=3
Secondary nodes with no main segment found during the Starter are deleted from the interface, new calculation for dsearch, if dsearch= 0.
=1000 (Default)
No deletion of secondary nodes.

(Integer)

  
Spotflag Spotweld formulation flag. 4 5 6 7 8 12
=0
Set to 4, if /CAA is used.
Set to 5, if /CAA is not used.
=1
Formulation is optimized for spot welds or rivets.
=2
Same formulation as standard formulation. Required when using hierarchy levels. Not compatible with nodal time step, /DT/NODA/CST.
=4 Default, if /CAA is used.
Rotational DOF are not transmitted, if shells are used. Not compatible with nodal time step /DT/NODA/CTS.
=5 Default, if /CAA is not used.
Standard formulation.
= 20, 21, 22
Formulation with failure. Not compatible with nodal time step, /DT/NODA/CST. The stress is computed for each secondary node according to the "equivalent" surface around the node. The equivalent surface is defined accordingly:
=20
Surface computed using shell and brick faces attached to the node.
=21
Surface computed using only the shell attached to the node.
=22
Surface computed using only the brick faces attached to the node.
=25
Penalty formulation (not recommended). 19
=27
Kinematic formulation similar to Spotflag =5 with an automatic switch to penalty formulation when incompatible kinematic conditions occur. 20
=28
Kinematic formulation similar to Spotflag =1 with an automatic switch to penalty formulation when incompatible kinematic conditions occur. 20
=30
Formulation with cubic curvature of main segment. Not compatible with nodal time step, /DT/NODA/CST.

(Integer)

  
Isearch Search formulation flag for the closest main segment.
=0
Set to 2.
=1
Old formulation (only used for previous version).
=2 (Default)
New improved formulation.

(Integer)

  
Idel2 Node deletion flag. 9 10 16
=0
Set to 1000.
=1
Kinematic condition is suppressed on the secondary node, when all elements linked to the main segment are deleted. (The secondary node is removed from the interface).
=2
Kinematic condition is suppressed on the secondary node, if the main element is deleted. (The secondary node is removed from the interface).
=1000 (Default)
No deletion.

(Integer)

  
Istf Interface stiffness definition flag. 17
Only used with penalty formulations (Spotflag=25, 27 or 28)
=0
Set to 2.
=1
Penalty stiffness is the main stiffness.
=2 (Default)
Penalty stiffness is the average of the main and secondary stiffness.
=3
Penalty stiffness is the maximum of the main and secondary stiffness.
=4
Penalty stiffness is the minimum of the main and secondary stiffness.
=5
Penalty stiffness is the main and secondary stiffness in series.

(Integer)