,ohh okay I don't know but I feel like FEA and ANSYS is kinda like a never ending river, where you find a new and different fish everytime you try to walk along with it. I guess calling myself a FEA and ANSYS expert will take way long time than I imagined I thought the convergence criterias were enough but there are some other things as well. I don't know how many more things are still hidden from my eyes haha