The stress$-$strain curve generated from a tension test specimen is as shown. The specimen has an original diameter $d_0=0\mathrm{.}33$ in$.$ and original gage length $L_0=3\mathrm{.}6$ in$.$ If the

Poisson's ratio of the material

$u=0\mathrm{.}25,$ determine the change of the diameter of the specimen, $d,$ when the tensile force $P=2\mathrm{.}5$kips. $[{10}^{-3}$ in$.]($sign sensitive$)$

The rectangular plate is deformed into the shape shown by the dashed lines.

For $a=291$ and $b=416,$

determine the normal strain along the line of AC$.{10}^{-3}($sign sensitive$)$

$\{$unt mm $($ not in scale$)$