A 4node quadrilateral element is shown in the figure with it

A 4-node quadrilateral element is shown in the figure with its dimensions and nodal numbers. Its stiffness matrix is to be calculated by using 1-point Gauss integration. The integration point is located at the natural (local) coordinates xi = 0 and eta = 0. Determine, at the integration point, The global coordinates x and y The Jacobian matrix. Terms of B-matrix related to node 3 A force P =5000kN/m, inclined at 60 degree to the x-axis, is applied at node 3. Assume plane stress condition. Let Young\'s modulus E = 20 GPa and Poisson\'s ratio v=0. Determine the horizontal and vertical displacements of node 3.

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