As the image shows above, I have run a simple over hanging beam model, about 100mm lenth with 50N load, but there are 6832MPa Von Mises stress! I check it again and again but don’t know what’s wrong with it. (At first I thougt may be there is anything wrong with the solver, but I have run a modal analysis and it has reasonable results), I use PrePoMax 2.1.0 and find other static stress models all have very large value of results(displacement, stress, and so on). I cann’t upload the pmx file as an attachement because I’m a freshman of this forum.
How did you apply the load ? As concentrated force ?
Yes, I apply the load as a concentrated force in on end surface of the beam.
Then that’s the problem Don't apply concentrated force load to surfaces
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Got it, I should use “Surface Traction” as the load, thank you very much!