Determine the von Mises stress for Problem 6.7. Problem 6.7 For the elements given i...

Determine the von Mises stress for Problem 6.7.

Problem 6.7

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 σ_x; σ_y; τ_xy; σ₁, and σ₂ and the principal angle θ_p. 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