Required Information

The $4-$mm$-$diameter cable $BC$ is made of a steel with $E=200$GPa. Knowing that the maximum stress in the cable must not

exceed $170$ MPa and that the elongation of the cable must not exceed $6$ mm $.$ If $a=4\mathrm{.}5m$ and $b=2\mathrm{.}5m,$ find the allowable

load $P$ that can be applied as shown.

we

FBD$/$Equillbrium equations

FBD

Equlllbrlum Equations

Solving eqn $(1),P_{BC}=1\mathrm{.}467P$

Design with respect to $($w$.$r$.$t$)$ axial stress

For the elongation in cable BC to not exceed $6(mm),$ the applied force $P$