MEGN $212$ Solid Mechanics

Written Homework $2$

Due $\frac{09}{2}\frac{?}{24}$

Problem $2$: A portable crane is capable of lifting $450$ kg in the vertical direction at the hook. Find the normal force and axial stress in the two members identified below. Member #$1$ is a hollow $50-mm($outside side width$)$ square tube with a wall thickness of $3$ mm $.$ Member #$2$ is a hollow $5075mm$ rectangle with a wall thickness of $3$ mm $.$ The locations $(x,Y)$ of the pivot points, in mm$,$ are as follows: A: $(0,0),B$:$(0,200),C$:$(225,385),$ and $D$:$(450,570).$ Assume all connections are pinned and that the pulley is frictionless.