For the stress element picture above,
\sigma _(x)=40MPa,\sigma _(y)=100MPa,\tau _(xy)=35MPa. These are magnitudes only, use the image to determine sign. Determine a. Principal Stresses and the orientation (CCW positive) b. Max in-plane shear stress (magnitude) and orientation (CCW positive) a.
\sigma _(1)=,MPa
\sigma _(2)=,MPa
\theta _(p)=,@b.
\tau _(max)=,MPa
\theta _(s)=