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Riks analysis using ABAQUS

I was doing an analysis using ABAQUS for snap buckling of conical shell using Static Riks option. But finding difficulty from switching over from static general step to static Riks. Program is aborting telling that constraints are rigid.

 

If anyone can help please respond 

Comments

Try creating it in a new file instead of replacing the step

I suggest that delete the existing step and recreate the Riks step and apply boundary conditions. I hope this would work.

 

Jay

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