How do I get the radial strain from the
I'm trying to plot the local biaxial strain (radial strain) on the top of the plate. The idea is to measure the displacement gradient along the center nodes. The geometry is symmetric.
What I was thinking was to export the normal elastic strain in the x and z-axis and find the magnitude. However, the geometry is still in the cartesian coordinates.
Is there a better way to go about this? Thanks for your help.