I am doing a simulation for a geogrid-reinforced piled embankment using Plaxis3D. I encountered a problem when trying to get the tensile strain in the geogrid, but it seems that it cannot be done directly. How can we obtain the strain from the geogrid element?
ps : I created a surface and then assigned it as a geogrid.
Thanks Stefanos, I'v seen a lot of formulas to calculate the tensile strain, but I don't know which one to choose. Do you have any suggestions?
I am not sure to what formulas you refer to as a strain is a ratio of two lengths, i.e. change of length and initial length.
You can check by selecting two nodes and compute it using the deformation results against the original (undeformed size).