Stress in a beam

AlephZero

How different is "different"? Beam theory is only an approximation. A 3-D finite element model is a different approximation. You wouldn't expect them to be "exactly" the same.

AlephZero $Math 2012$ Recognitions: Science Advisor	How different is "different"? Beam theory is only an approximation. A 3-D finite element model is a different approximation. You wouldn't expect them to be "exactly" the same.