I try to simulate the bending beam problem where the beam is fixed (x, y) on one end and the gravity load is applied. I selected the particle at the Gauss point and the particle volume as w*DetJ. The background mesh is structured with element size = 0.5. After running the simulation I observed that the results are not as expected and some particles are sticked to the grid (see attached figure). I attached here the input for my simulation. The json looks fine to me, but I wonder if I set something wrong in the analysis part.
BendingBeam.zip (3.3 KB)