At a point in a plate subjected to plane stress loading along its surface, the cartesian stress components acting on the x-face of an element oriented along the (x,y) frame are σx=40MPa and τxy=70MPa,

Question

The maximum allowable shear stress, to prevent yielding of the material, is τo=74MPa.

What is the permissible range (minimum and maximum values in MPa) for the normal stress on the y-face, σy, to ensure that the material will not yield?

σminy=

σmaxy=