PROBLEM $2\mathrm{.}11$

A block of $10-in.$ length and $1\mathrm{.}81\mathrm{.}6-in.$ cross section is to support a centric compressive load $P.$ The material to be used is a bronze for which $E=14{10}^6.$ Determine the largest load that can be applied, knowing that the normal stress must not exceed $18$ ksi and that the decrease in length of the block should be at most $0\mathrm{.}12\%$ of its original length.

NOTE: There are TWO criteria. Thus, there are TWO problems.

Determine the Load $P,$ if the maximum stress is $18$ ksi $.$

Determine the Load $P,$ if the change in length is $0\mathrm{.}12\%$ of the original length.

The solution will be the small load.