Nonsupported Features (Cards/Options...)


*ELCOPY
*ELGEN
*NCOPY
*NFILL
*NGEN
*NMAP

Individual nodes and elements are changed during the optimization. Thus, the commands used in Abaqus to define nodes and elements of transformations are invalid. The appearance of these options in the finite element input file leads to a termination of the optimization. Therefore, these definitions should be executed in a preprocessor such that an explicit definition of the nodes and elements is created.

When input files already exist, then a data check should be carried out with Abaqus. In this data check, the nodes and elements are generated and written in the output file (*.dat). The node and element definitions can then be copied from the output file and inserted into a new input file.


*parameter
*PARAMETER dependence
*parameter shape variation

Parametric inputs in the Abaqus input file cannot be used with Tosca Structure. A parameter check should be executed when parametric inputs exist. This parameter check causes an evaluation and substitution of only the parametric inputs:


abaqus job=job-name parametercheck

Then a modified input file containing no parameter and parameter dependence table definitions and <parameter> instances is produced. Rename the generated file named job-name.pes to job-name.inp and use this for optimization with Tosca Structure.

Tosca Structure Support of Abaqus Encrypted Files

Tosca Structure needs to read all model data, nodes, elements, loads and boundaries that are referenced in the optimization problem (as design area, DRESPs, etc.). Encrypted cards are generally allowed outside the design domain. Encrypted material cards are allowed if:

Material contains at least
```
*Material, name=steel
*Elastic
```
And the optimization type is either Abaqus sensitivity-based or controller-based, Encrypted material cards are NOT supported for Tosca Structure sensitivities