For the elements given in Problem 6.6, the nodal displacements are given as

u1 = 2.0 mm...............v1 = 1.0 mm............u2 = 0.5 mm

v2 = 0.0 mm...............u3 = 3.0 mm.............v3 = 1.0 mm

(a)

(b)

(c)

Determine the element stresses σx, σy, τxy, σ1, and σ2 and the principal angle θp. Use the values of E, v, and t given in Problem 6.6.

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(50, 120) (20, 30) (80, 30) (15, 10) 3 (10, 7.5) (15, 5) 2.