TOPIC - Solving a two-dimensional (2D) mesh in Matlab Consider the two-dimensional (2D) mesh of the steel structure depicted in Figure for which we have the following data: 1) Modulus of elasticity of rods: E = 200000 MPa 2) Bar cross-section: A = 3250 mm 3) Boundary conditions: Ux1 = Uy1 = Uy7 0 4) External loads at nodes: 1,3, 5 and 7 Wanted: 5) Solve the system for the unknown nodal displacements. 6) Calculate the reaction forces at the supports.. 7) Calculate the stresses in the finite elements. 8) Verify your solutions in Matlab with the corresponding solution of the problem in the commercial finite element software ANSYS Workbench as shown in the following figures. 4 8 11 280 kN 210 kN 280 kN 360 kN 1 15 7 9 3.118 m 60 2 60 6 10 R 5 3.6 m 3.6 m A 3.6 m