FBD local mesh refinement
I'm trying to refine my mesh locally instead of re-simulating the entire assembly with a fine mesh.
This is the result with the original mesh:
I requested Grid Point Forces in H3D format (using FBD) and then imported the results to a model that includes only the component of interest. The simulation includes inertia relief so every node in the original mesh has a load associated with it. I refined the mesh locally and ran the simulation.
This is the result of the simulation with a locally refined mesh:
I refined the mesh again and ran the simulation again:
Instead of converging to a smooth stress distribution, I'm getting localized stress concentrations at the original node locations.
How can I avoid this? Or is this unavoidable near an applied load? How can I refine the mesh without introducing artificial stress concentrations?