Question: 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

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 = 105 GPa, v = 0.25, and t = 10 mm.

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