I am looking for some intuition in making comparisons of FEM simulations to experimental measurements. In particular, I am interested in comparisons to strain gauge readings, and perhaps even LVDTs.
From an FEM simulation, the strains you compute would typically be at a certain node's location. For an FVM simulation, the strain you compute would typically be at a cell centered location.
If you make a strain gauge measurement at a location where your simulation is outputting a strain computation, could you make a direct comparison with the experimental measurement, or is some manipulation of the simulation results needed prior to making a direct comparison?