Question
Problem 3: For the plane stress elasticity element shown in the figure, Calculatethe element stiffness matrix and the element stress vector using the nodal displacements (in cm) listed below. The thickness of the element is 2 cm and thematerial matrix is U_{2 k-1}=0.012 \quad U_{21}=0 \quad U_{2 f-1}=0.01 \quad U_{2
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