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Hi community.

I have read a NASTRAN bdf file into Hyperworks and done some smoothing and optimization on the mesh.When I try to run the optimized mesh, I get the error: Incorrect data in field # 3. Field 'PID' of CTETRA bulk data. When I check the element, i can see that field 3 has a value of 0. Why?

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Adriano_Koga

Hi,

As you have remeshed your previous mesh, you probably lost your property (PID). I imagine that your previous model had a direct assignment for the properties on the elements. Once you have remeshed, this was lost.

One good approach is to have a 'indirect' propperty assignment, assigning the property into the 'Component', so that even if you remesh, the property is kept.

Adriano_Koga

Hi,

As you have remeshed your previous mesh, you probably lost your property (PID). I imagine that your previous model had a direct assignment for the properties on the elements. Once you have remeshed, this was lost.

One good approach is to have a 'indirect' propperty assignment, assigning the property into the 'Component', so that even if you remesh, the property is kept.

by the way, this should be moved to Altair Products.

Jason_Craanen

Hi,

As you have remeshed your previous mesh, you probably lost your property (PID). I imagine that your previous model had a direct assignment for the properties on the elements. Once you have remeshed, this was lost.

One good approach is to have a 'indirect' propperty assignment, assigning the property into the 'Component', so that even if you remesh, the property is kept.

You can also check this is the preferences. This will keep the PID on new elements.

Bernt Isaksen

Thanks for your help.