I'm observing something suspicious in a simulation that I wanted to share with you. I appreciate if you could help me out with it please: I'm simulating a 2D plate which is fixed in one end and I'm displacing the other end mimicking a uniaxial test. Now, when I average the nodal stress and divide by strain, I got a Young's modulus that shows 5% difference comparing with initial input E. So, is there any plausible explanation for it or there is something I'm missing in my simulation ? I tried different types of mesh, mesh size, mesh refinement, different integration order but all ended up into same observation.
Just a quick question on .mesh file generated with GMSH. I notice that when I generate .mesh file ( for instance with ) it contains EDGES section and thus if I use the generated .mesh file in sfepy if gives me error while if I manually remove that section, everything goes well. So, I was curious is there any trick so that I can avoid writing EDGES section in .mesh file or is there a shortcut in sfepy for it ? I need to avoid manually removing it.