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Hi, I have a question about shell element.

I am conducting a dynamic analysis.

It's passing a vehicle load on top of the shell element.

When 'shellDKGQ element' was used, 'stress' values could be extracted through 'element recorder'.

However, when using 'shellNLDKGQ', it seems that 'stress' value for vehicle load is not extracted.

Is there another response extraction command for dynamic analysis in 'shellNLDKGQ'?

I'll be waiting for your answer.

I have a question about openseespy.

I want to give the initial displacement to multi nodes at the same time.

I looked it up and used the displacement control to give initial displacement, but it was only available on one node.

Does anyone know a good way to control multiple nodes at the same time?

I will be waiting for your reply.