Question: A horizontal beam (A B) is supported on two cables (C E) and (D F) as shown in Fig 13.34 (a) Calculate the values of

A horizontal beam $A B$ is supported on two cables $C E$ and $D F$ as shown in Fig 13.34

(a) Calculate the values of $P$ when the strain in $D F$ is $3 \times 10^{-4}$ Assume that beam $A B$ does not bend. $A_{a}=A_{s}=600 \mathrm{~mm}^{2}, E_{a}=70 \mathrm{GPa}, E_{s}=210 \mathrm{GPa}$.

A F E Steel Aluminium 3m C D B 2m 1m1m (a)

A F E Steel Aluminium 3m C D B 2m 1m1m (a) P

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