Hi I have been trying to solve this but my manual calculations don't seem to be consistent with what the simulation tells me. Either my manual calculations are wrong or I have set up the simulation wrong. Any help would be greatly appreciated

**These are the instructions**

**The measurements are as follows **

I Beam Width mm | 45 |

I Beam depth mm | 90 |

Tube Outer dia mm | 60 |

Tube inner dia mm | 35 |

**These are the manual calculations that need to go with it**

This is what I have done so far but I can't seem to figure out how to complete the manual calculations to match the simulation or if my simulation is even correctly set up. Any suggestions would be very helpful as I was to perfect this because I will be using this analysis in future assignments too

A couple points: