How to have both the original and the deformed mesh centered at the same point

5 months ago by

I have a hyperelasticity problem for which I only have BCs for traction and not for displacement. As a result the deformed mesh will be displaced and will have a different center:

How can I move the deformed mesh (transparent box) back to the original mesh's center?

Community: FEniCS Project

1 Answer

5 months ago by
One option would be to instead constrain the problem such that the average displacement is zero.  It would be the vector-valued generalization of this demo

with a scalar Lagrange multiplier for each component of displacement.
Thank you.
The problem is, by putting a restriction for displacement we are changing the solution. I still want my answer to consider the displacement field but the plot to just show the deformation.
written 5 months ago by Nima  
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