Number of Elements through Wall Thickness
Number of Elements through Wall Thickness
(OP)
Could someone direct me to some literature that will describe how to determine the minimum number of elements that should be used through a wall thickness for different element types? Thanks





RE: Number of Elements through Wall Thickness
RE: Number of Elements through Wall Thickness
RE: Number of Elements through Wall Thickness
Tara
http://tinyurl.com/4ydjg7m
RE: Number of Elements through Wall Thickness
My guess is that it is similar to camera's megapixels I remember reading consumer reports saying 2 megapixels was all that is needed.
Basically run a mesh sensitivity study is the answer. Depending on how similar your problems are you may get a feel for your analysis type and may not need to run these all the time. I typically run a sensitivity and then deploy this as a method for many runs with similar geometries or loads.
Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/
RE: Number of Elements through Wall Thickness
do you just refine to 2x elements and check stress on a number of points or is it more statistical (K-S test)?
RE: Number of Elements through Wall Thickness
For general purposes, this works fine. However, note that stresses do not converge "smooth", but rather in a sawtooth like fashion. This is in contrast to displacements, which do converge "smoothly". Just something to be aware of if the data doesn't show a nice smooth convergence curve.
It is not related to a statistical distribution.
Brian
www.espcomposites.com
RE: Number of Elements through Wall Thickness