The oscillation is observed in the triangle-6 node mesh, where the second order shape function and related gauss point integration rule are involved, the result looks like below:
The possible reason could be the generation of the guass point. Thereby for this case, it should be improved definitely!
The oscillation is observed in the triangle-6 node mesh, where the second order shape function and related gauss point integration rule are involved, the result looks like below:
The possible reason could be the generation of the guass point. Thereby for this case, it should be improved definitely!