Hello @lkirit2000 ,
Did you add that material to an Inventor material library?
In Inventor materials are created in the documents (assembly or part file).
In the Inventor material browser you need to right click on the document material and select “add to” to add that material to an Inventor material library.
When you enter the Nastran environment a default analysis is created, if no analysis already exists. Materials are by default created from the materials in the Inventor parts files. Note that changing the Inventor materials in the Inventor part files doesn’t update the material properties in your Nastran analysis.
When you want to add a new material to your Nastran analysis select Materials from the Nastran ribbon > Select material > choose from one of the Inventor material libraries in which you saved your material.
Hope this helps.
Roelof Feijen
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