How to convert materials and curves from Radioss (.rad) file to Abaqus (.inp) file?

Akash Purushothaman

In a Radioss (.rad) file I have a few materials with material curves associated as shown below

Now I want to have the same materials with the same curves mapped in Abaqus (.inp) file

When I tried Mesh convert, there is no direct way to convert from Radioss to Abaqus

When I try to convert to OptiStruct, no curves are converted.

 

Is there any other way to transfer the material data along with curves and properties from Radioss to Abaqus?

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Michael Herve

Akash Purushothaman,

 

converting from an explicit solver to an implicit solver can be tricky, as in many cases we will focus on elastic material behavior in  implicit computations. Also, the way non-linearity is defined from one solver to another may vary (eg one solver can request a stress vs plastic strain curve, whereas the other looks for stress vs total strain).

So for materials it is not straightforward to get the proper conversion.

For such case, the best approach is still to look at both solver documentations, to check how to adopt the parameters, and ideally to run some sample tests with both solvers to check if you get the same behavior.

Once this done, you can populate your own material database and call the appropriate material card, depending on your solver.

Coming back to the Radioss to Abaqus conversion, this is indeed one of the conversion we do not support from the drop-down menu Tools -> Convert.That said, from 2021, we have improved the type of entities that can be converted just by switching the user profile. You should at least get elements, nodes, properties, sets get converted with version 2021. Please note that for conversion, we improve regularly the capabilities so do not hesitate to test more recent versions. Conversion still won't be exhaustive, but we may have increased our coverage.

 

Best Regards,

Michael