Consider a point in a structural member that is subjected to plane stress. Normal and shear stresses acting on horizontal and vertical planes at the point are shown in Figures P12.74. (a) Draw Mohr’s...

Consider a point in a structural member that is subjected to plane stress. Normal and shear stresses acting on horizontal and vertical planes at the point are shown in Figures P12.74.

(a) Draw Mohr’s circle for this state of stress.

(b) Determine the principal stresses and the maximum in-plane shear stress acting at the point.

(c) Show these stresses in an appropriate sketch.

(d) Determine the absolute maximum shear stress at the point.