The definition of groups is a very important function in SIMULIA Tosca Structure.
For example, if one or more nodes should be assigned a specific attribute
(for example, a restriction), the nodes are first assembled in an object node
group. Then the attribute is assigned to the object node group.
In SIMULIA Tosca Structure
two different types of groups exist: node groups and element groups.
Groups can be defined manually using selection of objects or using lists
in Tosca Structure.gui.
Further, automatic node group definition is available to define groups
following specific geometric patterns like, for example, on surfaces of revolution.
All groups from the FE input file(s) linked to the optimization task
are also available for definitions in SIMULIA Tosca Structure. Groups
are uniquely defined and addressed with their user-defined names (character
string). The use of an identical name for a node group and an element
group is not permitted.