Question $4$

Numerical problem $1\mathrm{.}2$: Similar to the previous question, the pipe shown in the figure has

the same circular cross$-$section along the entire length. External force is $203$ lN and it acts

in $y-$direction on the xy$-$plane. Shear failure stress is $80$ MPa $.$ The factor of safety is $21.$

Note: This is not a bending problem, but a simple shear problem $($point A$),$

Write the final solution in the box for this question.

$($c$)$ Determine the diameter $(4$ decimal places$)$ of the circular cross$-$section, in meters, at

which the shear stress will be equal to the allowable shear stress.

Please answer the question with solution