2023.1

2023.1

*SET_SEGMENT

LS-DYNA Input Interface KeywordDefines a surface defined by 3 or 4 node segments.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
*SET_SEGMENT_{OPTION1}_{OPTION2}
`set_ID`

If OPTION1 = <BLANK>, repeat the following line, as needed.

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`N_ID1`	`N_ID2`	`N_ID3`	`N_ID4`

If OPTION1 = GENERAL

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`TYPE`	`E1`	`E2`	`E3`	`E4`	`E5`	`E6`	`E7`

Definition

Field	Contents	SI Unit Example
`OPTION1`	BLANK GENERAL
`OPTION2`	<BLANK> Default Each set is treated separately. Sets cannot share the same ID. COLLECT All *SET_SEGMENT with this option and the same ID are combined together into a single set.
`set_ID`	Node set identifier. (Integer)
`N_ID1` - `N_ID4`	Node IDs, 4 per line. (Integer)
`TYPE`	BOX Shell segments and external solid segments inside the listed boxes `E1` to `E3` are added to the set. BOX_SHELL Segments from shell elements inside the listed boxes `E1` to `E3` are added to the set. BOX_SLDIO All (internal and external) segments from elements inside the listed boxes `E1` to `E3` are added to the set. BOX_SOLID External segments from solid elements inside the listed boxes `E1` to `E3` are added to the set. DBOX Segments inside the listed boxes `E1` to `E3` are removed from the set. DBOX_SHELL Segments from shell elements inside the listed boxes `E1` to `E7` are removed from the set. DBOX_SOLID Segments from solid elements inside the listed boxes `E1` to `E7` are removed from the set. DPART Segments from parts inside the listed boxes `E1` to `E7` are removed from the set. DSEG Segments defined by nodes `E1` to `E4` are removed from the set. PART Shell segments and external solid segments from part list `E1` to `E3` are added to the set. PART_IO All (internal and external) segments from part list `E1` to `E3` are added to the set. SEG Segment defined by nodes `E1` to `E4` is added to the set. SET_SHELL Segments from shell set list `E1` to `E3` are added to the set. SET_SOLID External segments from solid set list `E1` to `E3` are added to the set. SET_SLDIO All (internal and external) segments from solid set list `E1` to `E3` are added to the set. SET_TSHELL External segments from thickshell set list `E1` to `E3` are added to the set. SET_TSHIO All (internal and external) segments from thickshell set list `E1` to `E3` are added to the set. SHELL Segments from shell list `E1` to `E3` are added to the set. No default
`E1` - `E7`	Entity IDs, 7 per line (Integer)

Comments

This keyword maps to /SET.
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.