*SET_DISCRETE

LS-DYNA Input Interface KeywordDefines a set of springs based on a list of springs in various ways.

Format

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*SET_DISCRETE_{OPTION1}_{OPTION2}
set_ID      
If OPTION1 = <BLANK>, repeat the following line, as needed.
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E_ID1 E_ID2 E_ID3 E_ID4 E_ID5 E_ID6 E_ID7 E_ID8
If OPTION1 = GENERATE, repeat the following line, as needed.
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E_IDB1 E_IDE1 E_IDB2 E_IDE2 E_IDB3 E_IDE3 E_IDB4 E_IDE4
If OPTION1 = GENERATE_INCREMENT, repeat the following line, as needed.
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E_IDB E_IDE INCR          
If OPTION1 = GENERAL, repeat the following lines for each TYPE used.
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TYPE ID1 ID2 ID3 ID4 ID5 ID6 ID7
  ID8 ID9 ID10 ID11 ID12 etc.  

Definition

Field Contents SI Unit Example
OPTION1
<BLANK> (Default)
The springs in the set are listed 8 per line until the next keyword.
GENERATE
The springs in the set include all the parts between E_IDB1E_IDE1, E_IDB2E_IDE2, E_IDB3E_IDE3, and so on.
GENERATE_INCREMENT
The springs in the set include all the parts between E_IDB1E_IDE1 with the increment value INCR.
GENERAL
The springs in the set are defined using the TYPE options defined.
OPTION2
<BLANK> Default
Each set is treated separately. Sets cannot share the same ID.
COLLECT
All *SET_DISCRETE with this option and the same ID are combined together into a single set.
 
set_ID Set identifier.

(Integer)

E_ID1 - E_ID8 Element IDs, 8 per line.

(Integer)

E_IDB1 - E_IDB4 First element ID of the range, 4 ranges per line.

(Integer)

E_IDE1 - E_IDE4 Last element ID of the range, 4 ranges per line.

(Integer)

E_IDB First element ID of the range.

(Integer)

E_IDE Last element ID of the range.

(Integer)

INCR Increment value for the list generation from E_IDB to E_IDE.

Default = 1 (Integer)

TYPE
ALL
All springs in the model are added to the set. No entities are listed for this option.
ELEM
The listed springs are added to the set.
DELEM
The listed springs are removed from the set.
PART
The springs from the listed parts are added to the set.
DPART
The springs from the listed parts are removed from the set.
BOX
The springs inside the listed boxes are added to the set.
DBOX
The springs inside the listed boxes are removed from the set.

No default

ID1, ID2, ID3 .. Entity IDs, 7 per line.

(Integer)

Comments

  1. This keyword maps to /SET.
  2. The adding and removing of springs in *SET_DISCRETE_GENERAL depends on the order of the TYPE options used.
  3. The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 characters long line is added after the keyword input line which allows an entity title to be defined.