(Solved): - Draw FBDs as required. Clearly state all assumptions made towards solving the problem - Please en ...

- Draw FBDs as required. Clearly state all assumptions made towards solving the problem - Please enter all answers on paper/tablet and convert to single pdf file and submit - Exam is for a total of 100 points 1) Two rods $CE$ and $DF$ are connected to a rigid rod $ABCD$ as shown. Steel rod $CE$ has a 3 in ${}^2$ area $\left(E_{st}=30\times 10^6\mathrm{psi}\right)$. Rod $DF$ has an alumuinum shell with a 1 in ${}^2$ area which is bonded to a brass core with a $1.5{\mathrm{in}}^2$ area $\left(E_{al}=10\times 10^6\mathrm{psi},E_{br}=15\times 10^6\mathrm{psi}\right)$. If a $10\mathrm{kip}$ force were applied at $A$, detrmine the axial stress developed in the brass core of rod $DF$.