Here is a practise question that I am working on. The beam has different thickness due to the supports in the middle. I would expect the maximum bending stress be away from the middle due to the support? But that is not what I got.
Also I am very confuse with the moving pointload. Do we have different induced maximum external moment (due to pointload) at different location along the beam(due to the thickness)? For example, the maximum moment at the thinner beam would be $(-1m \times 20kN)$? But the maximum moment at the thicker beam would be $(-2m \times 20kN)$? (As the pointload moves)