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The objective of this operator is to facilitate the user's task in creating a dynamic macro element. CREA_ELEM_SSD calculates the basic projection vectors, defines the interfaces, and creates the dynamic macro element.

It produces a concept like macr_elem_dyna.

The dynamic macro element created is ready to be assembled with other dynamic macro elements in order to obtain a generalized model. The creation of this generalized model can be done with the ASSE_ELEM_SSD operator.

The purpose of this operator is not to be able to create all possible macroelements. It allows you to create real standard macro-elements that correspond to the majority of cases. The basic vectors of these macroelements are of the CLASSIQUE type or else RITZ base vectors with interface modes.

For particular projection bases, the user is invited to create them manually using standard operators.