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
Determine the element stresses σx; σy; τxy; σ1, and σ2 and the principal angle θp. Use the values of E; n, and t given in Problem 6.6.
Evaluate the stiffness matrix for the elements shown in Figure P6–6. The coordinates are given in units of millimeters. Assume plane stress conditions. Let E = 210 GPa, v = 0:25, and t = 10 mm. 6.7 For the elements given in Problem 6.6, the nodal displacements are given as
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