Question

Consider the 1040 carbon steel listed in Table 6.1. (a) A 20-mm-diameter bar of this alloy is used as a structural member in an engineering design. The unstressed length of the bar is precisely 1 m. The structural load on the bar is 1 .2 x 10^5 N in tension. What will be the length of the bar under this structural load? (b) A design engineer is considering a structural change that will increase the tensile load on this member. What is the maximum tensile load that can be permitted without producing extensive plastic deformation of the bar? Give your answers in newtons (N).

Answer 1