Question

A 12-ft circular steel rod with a diameter of 1.5-in is in tension due to a pulling force of 70-lb. Calculate the stress in the rod

Answer 1

The stress in the rod is 39.11 psi.

Step-by-step explanation:

The stress due to a pulling force is obtained dividing the pulling force by the the area of the cross section of the rod. The respective area for a cylinder is:

`A=\pi*D^2/4`

Replacing the diameter the area results:

`A= 17.76 in^2`

Therefore the the stress results:

`σ = 70/17.76 lb/in^2 = 39.11 lb/in^2= 39.11 psi`