Question $2[10]$

The flow curve parameters for a white gold in a tensile test were as follows:

Strain hardening exponent $=0\mathrm{.}15$

Strength coefficient $=450$MPa.

Now, the same metal is put through a compression test, with the specimen's diameter being $40$ mm and its beginning height being $60$ mm $.$ Assuming a consistent increase in cross section.

$2\mathrm{.}1$ Calculate the load necessary to compress the specimen to $40$ mm in height.