A 10 mm diameter rod of the 1040 carbon steel is subjected to a tensile load of 1.2 x 104N. Calculate the resulting engineering stress. If the initial length of the rod was 1 m, find the elongation. What is the maximum tensile load that can be permitted without producing extensive plastic deformation? Give your answers in both newtons (N) and pounds force (lbf).

 

For reference, the Modulus of Elasticity, E, is 200.

Yield Strength is 600 MPa.

Tensile Strength is 750 750 Mpa.

Percent elongation at failure is 17.