I had tried
I = bd3/12 - bd3/12
& then doing the same including the additional size of the weld.
I = bd3/12 - bd3/12
and trying to subtract the smaller from the larger but that didnt work.
I wrote it out a couple of times trying to calculate each rectangle individually but I couldent get...
I've to work out b & d in this equasion.
I=bd^3/12
I know that the ratio between b & d in this case is 1.166 and I am given the value of I.
It is an engineering problem as the software will only allow the use of square/rectangular or round section but we are using H section and we are allowed...
Im needing to calculate the Zxx and Yxx for 2 shapes.
The shapes are an H profile and a + profile however its not the basic profiles I am needing but the moment of inertia for the weld profile surrounding them as the theory is they are welded to a vertical metal surface then a load is applied...