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elty

      'elty' <set> 'be2'|'be2d'|'be3'|'tr3'|'tr3u'|'tr3e'|'tr3s'|->
                   'tr3c'|'tr6'|'tr6e'|'tr6s'|'tr6c'|'qu4'|'qu4e'|->
                   'qu4s'|'qu4c'|'qu8'|'qu8e'|'qu8s'|'qu8c'|'he8'|->
                   'he8f'|'he8i'|'he8r'|'he20'|'he20r'

This keyword is used to assign a specific element type to a set of entities (see section Element Types in the appendix). The element name is composed of the following parts: The leading two letters define the shape (be: beam, tr: triangle, qu: quadrangle, he: hexahedra), then the number of nodes and at last an attribute describing the mathematical formulation or other features (c: axisymmetric, e: plain strain, s: plain stress, u: unstructured mesh, r: reduced integration, i: incompatible modes, f: fluid element for ccx). If the element type is omitted, the assignment is deleted. If all parameters are omitted, the actual assignments are posted:
elty
will print only the sets with assigned elements. Multiple definitions are possible. For example,
elty all
deletes all element definitions. If the geometry was already meshed, the mesh will NOT be deleted. If the mesh command is executed again after new assignments has taken place, additional elements will be created.
elty all he20
assigns 20 node brick-elements to all bodies in the set all.
elty part1 he8
redefines that definition for all bodies in the set part1.
elty part2 qu8
assigns 8 node shell elements to all surfaces in set part2.

Be aware of the command ``mids'' to remove or include mid-side nodes of elements. Especially if you use the unstructured element-type tr3u. In this case you might change the linear triangles to tr6 elements with this command.

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