Modified from Kalpakjian & Schmid $(6$th ed$.)$ CH$2,$ Problem $2\mathrm{.}41.$ If you remove the layer of material ad from the part shown in Fig. $2\mathrm{.}30$d$-$for instance, by machining or grinding $-$ which way will the specimen curve? $($Hint: Assume that the part shown in sketch $d$ in the figure is composed of four horizontal springs held at the ends. Thus, from the top down, you have compression, tension, compression, and tension springs.$)$