Use Matlab to make a graphical comparison between the maximum shear stress and distortion

energy failure criteria for cases of plane stress, for AISI 1010 HR steel. Plot the contour for the

distortion energy theory and the maximum shear stress theory that separates safe from unsafe loading (in the

B versus A plane). Make sure to scale your plot equally in the x- and y-direction(hint: axis equal). Add a

grid and axes labels to the plot. Mark the following stress states in your figure with black markers and explain

whether the failure criteria predict failure or not.

a) 1= 200 MPa, 2= 190MPa, 3= 0

b) 1= 100 MPa, 2= 0 MPa, 3=-30 MPa

(note: the given values are principal stresses)