Required information

The rigid bar ABC is supported by two links, $AD$ and $BE,$ of uniform $37\mathrm{.}56-mm$ rectangular cross section and made of a

mild steel that is assumed to be elastoplastic with $E=200$GPa and ${}_Y=250$MPa. The magnitude of the force Q applied

at $B$ is gradually increased from zero to $264$ kN and $a=0\mathrm{.}640m.$

Determine the value of the normal stress in each link.

The value of the normal stress in link $AD$ is

MPa $.$

The value of the normal stress in link $BE$ is

MPa $.$