HI
WHEN I RUN A SIMPLE CANTILEVER BEAM I GET DIFFERENT RESULTS DEPENDING ON THE MESH DATA
IF I USE THE SMALLEST ELEMENTS I GET A MUCH BIGGER RESULT THAN MANUALLY CALCULATED
I DOUBLE CHECKED ALL THE DEFINITIONS AND I THINK I'M OK
?ANY SUGGESTIONS
!THANX
hi thanks for responding!
the smaller the mesh elements are, the bigger the stress is
as you can see the max stress is over 10 MPA and the calculated answer is 9 MPA
Can you show the result with coarse mesh size?
I guess the max stress is due to stress concentration at the sharp edge.
Hand calculation probably does not consider the effect of stress concentration
A typical singularity as Shaodun describes.
Edit: To clarify, a singularity is a numerical error where the solution tends to infinity with increased mesh resolution.
thank you for your time and answers!