Problem

A link in a mechanism is a rectangular steel bar that is subjected alternately to a tensile load of $2000$ N

and a compressive load of $220$ N $.$ Its dimensions are as follows: length $=215mm,$ width $=6\mathrm{.}0mm,$ and

thickness $=3\mathrm{.}0mm.$ Compute the elongation and compression of the link. $[$ANS$.$ Elongation$=0\mathrm{.}12$mm$,$ Compression$=0\mathrm{.}013$mm$]$