Cantilever steel rod is loaded by axial concentrated forces.
Given: l1=1,8l ; l2=1,9l ; l3=3l; F1=-2,7P; F2=2,2P; F3 =-0,9P. Parameter of length l=50cm; cross section proportion: b=1,4h; parameter of loading P=47kN. The rod is made of steel with yielding stress σY=330MPa; factor of safety n=1,5.
Find: the height (in mm) of cross section from strength calculation h = ?