/SET

Block Format Keyword Defines a general entity set which can be referenced by other entities.

The sets can be a combination of different types of entities such as elements, nodes, segments, or parts. Each entity type is defined by a Key followed by a list of item_ID. A different entity can be added by including a different Key and more item_ID. The item_ID_n lines can be repeated for the same Key entity.

Format

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/SET/`set_type`/`set_ID`
`set_title`
`Key_OP`₁	`item_ID`₁	`item_ID`₂	`item_ID`₃	`item_ID`₄	`item_ID`₅	`item_ID`₆	`item_ID`₇	`item_ID`₈	`item_ID`₉
	`item_ID`₁₁	`item_ID`₁₂	`item_ID`₁₃	etc	etc	`item_ID`_n
`Key_OP`₂	`item_ID`₁	`item_ID`₂	`item_ID`₃	`item_ID`₄	`item_ID`₅	`item_ID`₆	`item_ID`₇	`item_ID`₈	`item_ID`₉
	`item_ID`₁₁	`item_ID`₁₂	`item_ID`₁₃	etc	etc	`item_ID`_n
`Key_OP`_n	`item_ID`₁	`item_ID`₂	`item_ID`₃	etc

If Key_OP =SEG, define surface segments

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SEG	`seg_Id`_n	`node_ID`₁	`node_ID`₂	`node_ID`₃	`node_ID`₄

If OP = G, the set is generated using the first, last, and increment ID.

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`Key_G`	`first_ID`₁	`last_ID`₂	`Incr`_1-2	`first_ID`₃	`last_ID`₄	`Incr`_3-4	`first_ID`₅	`last_ID`₆	`Incr`_5-6

If Key = BOX or OP = B such as SHELL_B, box identities are listed.

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`Key_B`	`box_ID`₁	`box_ID`₂	`box_ID`₃	`box_ID`₄	`box_ID`₅	`box_ID`₆	`box_ID`₇	`box_ID`₈	`box_ID`₉

If Key = ALL, no entities are listed.

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ALL	BLANK

Definitions

Field	Contents	SI Unit Example
`set_type`	Set type. GENERAL General set definition. COLLECT General set with automatic assembling in Radioss Starter. All the /SET/COLLECT with the same ID are merged together. The /SET/COLLECT ID are not offset in case it is defined in a //SUBMODEL.
`set_ID`	Set identifier. Cannot be the same as the identifier for any group entity IDs of /GRNOD, /GRElement, /SURF, /LINE, or /GRPART. (Integer, maximum 10 digits)
`set_title`	Set title. (Character, maximum 100 characters)
`Key`	Keyword defining the entity to read. 1 ALL Complete model BEAM List of beam element ID BOX 5 List of box IDs. Add entities that have all nodes in the box. BOX2 5 List of box IDs. Add entities with at least 1 node inside the box, NODE List of node ID PART List of part (component) QUAD List of 4 nodes 2D solid element ID RBODY List of rigid body IDs SEG List of surf or line segments SET List of general sets SETCOL List of sets type COLLECT SH3N List of 3 node shell element ID SHELL List of 4 node shell element ID SOLID List of any type of 3D solid element ID SPRING List of spring element ID SUBS List of subset SUBM List of submodel IDs TRIA List of 3 node 2D solid element ID TRUSS List of truss element ID
`OP`	Optional Key suffix. = A All facets and all edges of parts, subset, submodel or box. = B Add entities contained in the box defined by `box_ID`. = C Add entities with at least 1 node inside the box defined by `box_ID`. = D Delete (remove) the entities from the set. = E Only external facets or external edges of parts, subset, submodel or box and node from external facets or external edges of parts, subset, submodel or box. = G Generate a list of entities between 2 items IDs and increment. = I Intersection between lists of entities and previously read entities. 8 = O Reverse orientation of the surface segment normal and add the entities to the set.
`item_ID`₁, `item_ID`₂,... `item_ID`_n	List of entity identifiers. (Integer)
`seg_ID`_n	Segment identifier. (Integer)
`node_ID`₁	Node identifier 1 for the segment definition. (Integer)
`node_ID`₂	Node identifier 2 for the segment definition. (Integer)
`node_ID`₃	Node identifier 3 for the segment definition (not needed for line segments). (Integer)
`node_ID`₄	Node identifier 4 for the segment definition (not needed for line segments or 3 node /SH3N triangular segments). (Integer)
`first_ID`₁, `last_ID`₂	List of entities starting at `first_ID`₁ ending at `last_ID`₂ with an increment of `Incr`_1-2. (Integer)
`Incr`_1-2, `Incr`_3-4, ...	Increment value for the list generation from `first_ID`₁ to `last_ID`₂. Default = 1 (Integer)
`box_ID`_n	Box identifier used with, `Key`=BOX or BOX2, or when `OP`= B or C.

Key Types

Several options can be combined according the following compatibility tables:

Key	Entity Input
		A	B	C	D	E	G	I	O
ALL	All the model
BEAM	Beam element		√	√	√		√	√
BOX	All entities defined inside a box	√			√	√	√	√
BOX2	All entities defined with at least 1 node inside a box	√			√	√	√	√
NODE	Node		√	√	√		√	√
RBODY	Rigid body		√		√		√
PART	Part	√			√	√	√	√	√
QUAD	4-node 2D solid element		√	√	√		√	√
SEG	Surface or line segment				√		√	√
SET	Set of entities				√		√	√
SETCOL	Set type COLLECT entities				√		√	√
SH3N	3-node shell element		√	√	√		√	√	√
SHELL	4-node shell element		√	√	√		√	√	√
SOLID	Any 3D solid element		√	√	√		√	√
SPRING	Spring element		√	√	√		√	√
SUBS	Subset	√			√	√	√	√	√
SUBM	Submodel	√			√	√	√	√	√
TRIA	3-node 2D solid element		√	√	√		√	√
TRUSS	Truss element		√	√	√		√	√

Key: Description
PART: Add parts using the default extraction options.
PART_D: Remove part (all segments from solid parts, or all edges from).
PART_GA or PART_AG: Add a part (all segments and all edges) using the generation option.
SHELL_GO or SHELL_OG: Add shell element by generation and reverse the normal direction.

Comments

Multiple lines of item_ID can be entered for a defined KEY_OP. It defines that a block, and entities extraction operations are done on this block. If the OP=E option is used, the external segments or edges are extracted from the entities defined in the block.
The set_ID cannot use the same identifier as any group IDs in /GRNOD, /GRElement, /SURF, /LINE, /GRPART.
The set_ID from the /SET can be referenced in any entity that references a /GRNOD, /GRElement, /SURF, /LINE, /GRPART.
A few examples would be /IMPDISP, /CLOAD, /INTER/TYPE7, or /SECT.
Non-existing item_ID_i or box_ID_i will be ignored and a warning message is printed in the Starter output file.
For Key=BOX or OP=B, all nodes of an entity must be in the box for the entity to be included in the set.
For Key=BOX2 or OP=C, at least 1 node of an entity must be in the box for the entity to be included in the set.
When a set is referenced by a keyword, the entities referenced (nodes, surface, line, or elements) are automatically extracted from the set. For example:
Solid elements: only external segments or external edges from 3D and 2D solid elements are extracted by default. Key option OP=A can be used to get all segments and edges.

Shell elements: all edges are extracted by default. Key option OP=E can be used to get only free edges.

Nodes: all nodes are extracted from the set by default. Key option OP=E can be used to get only the nodes from an external segment of solid elements or nodes from the free edge of shell elements.
The identifier (ID) of sets type COLLECT or defined listed with Key=SETCOL are not offset when they are defined in //SUBMODEL with a defined offset value.

Intersection operation example:

#---1----|----2----|----3----|----4----|----…
/SET/GENERAL/5
Intersections
SET              1        2
SET_I            3        4
#---1----|----2----|----3----|----4----|----5…

The final result is: (1 Ս 2) Ո (3 Ս 4)

Entities are automatically extracted as:

Required Set	Contents
Node set, /GRNOD	`OP`=A (Default) All nodes of the selected entities. `OP`=E Nodes from external faces of the solid elements defined in each `Key` block. Nodes from free edges of the shell elements defined in each `Key` block. All nodes for the other elements.
Element set, /GRelement	All elements of the selected entities.
Surface, /SURF	`OP`=E (Default) Only the external faces of the solid elements defined in each `Key` block. All segments from shells elements. `OP`=A All segments from solid elements (external and internal). All segments from shells elements.
Line, /LINE	Default Only edges from the external faces of the solid elements defined in each `Key` block. All edges from shells elements. All edges from beam, truss, and spring elements. `OP`=A All edges from solid elements (external and internal). All edges from shells elements. All edges from beam, truss, and spring elements. `OP`=E Only edges from the external faces of the solid elements defined in each `Key` block. Only free edges from the shell elements defined in each `Key` block. Free edges from beam, truss, and spring element.