Mechanic

Sections $8\mathrm{.}1$ through $8\mathrm{.}5$

$8\mathrm{.}1$ A $60-mm$ by $40-mm$ plate of $5-mm$ thickness is subjected to

uniformly distributed biaxial tensile forces $($Fig$.$ P$8\mathrm{.}1).$ What

normal and shear stresses exist along diagonal $AC?$ As was done

in the derivations given in Section $8\mathrm{.}2,$ use an approach based upon

the equilibrium equations applied to the wedge$-$shaped half ABC of

the plate.

Figure P$8\mathrm{.}1$