I appreciate your response. I have already watched this video, and that is why this insight showed up in my mind to use equivalent nodal force instead of the sphere/cylinder. Because for an accurate result, we need small mesh size and inflation around the edges. This feature highly increases the computational time if the model is explicit dynamic and the roller is passing over this surface.
In this video, the surface is rigid and is considered as one element. Suppose we need to consider deformable surface as well. If the surface also needs small mesh size and inflation, the computational time will be increased. Am I right?
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