The state of plane stress at a point in plate having sigma_x = 0 is as shown: Calculate the in-plane principal stresses, Show the orientation of the principal planes by sketching an element with the...

The state of plane stress at a point in plate having sigma_x = 0 is as shown: Calculate the in-plane principal stresses, Show the orientation of the principal planes by sketching an element with the principal stresses acting on the principal planes. What is the absolute maximum shear stress at the point?