/GRNOD

Block Format Keyword Node Groups

Input Type Keywords: Node Group

Keyword
Input Type
/GRNOD/BOX
Box
/GRNOD/GEN_INCR
Generate list by increment
/GRNOD/GENE
List of nodes with generation
/GRNOD/GRBEAM
Beam group
/GRNOD/GRBRIC
Brick group
/GRNOD/GRNOD
Node groups
/GRNOD/GRQUAD
Quad group
/GRNOD/GRSHEL
4 node shell group
/GRNOD/GRSH3N
3 node shell group
/GRNOD/GRSPRI
Spring group
/GRNOD/GRTRUS
Truss group
/GRNOD/LINE
List line groups
/GRNOD/MAT
Material
/GRNOD/NODE
List of nodes
/GRNOD/NODENS
Unsorted node numbers
/GRNOD/PART
Part
/GRNOD/PROP
Property
/GRNOD/SUBMODEL
Submodel
/GRNOD/SUBSET
Subset
/GRNOD/SURF
Surface

Comments

  1. A node group is a set of nodes. It can be defined explicitly by a list of:
    • nodes
    • entering a first and last node ID range which defines the group
    • submodels (all nodes belonging to the listed submodel are included)
    • submodels (all nodes defined by /NODE or /CNODE in the listed submodel are included)
    • subsets or parts (all nodes belonging to the listed subset/part are included)
    • property sets or materials (all nodes belonging to an element having those Property Type's/MID's are included)
    • groups of nodes
    • element groups (all nodes connected to those elements are included)
    • a box (all nodes within a defined box are included)
    • an unsorted node list: same as list of nodes, but the nodes are stored in the order of input not sorted numerically as with other options (only needed in /INTER/TYPE8 and /XELEM option).
  2. Node groups are used to define secondary nodes of rigid walls, interfaces, rigid bodies or nodes to which a load is applied, like a concentrated load or a fixed velocity.