Reply To: Question about boundary conditions in Ansys Mechanical

[Armin]

 

Hello,

At the other end of the beam, try applying the load to the entire cross section (instead of a point load). I just created a model using Fixed Support at the other end and was able to get the expected ~290 MPa stress (screenshot below). Note that stresses particularly at the corners are not in agreement with the analytical approximation as the simplifyng assumption made to derive this analytical formula leads to this discrepancy.

You can also try modeling this 3D model as a line body or “beam” where the resulting stress is also in line with the analytical calculation (picture below).