This code is because few online resources explain the radiation tangent matrix correctly.
% 4. Solve U(free_dofs) = K(free_dofs,free_dofs) \ F(free_dofs); matlab codes for finite element analysis m files hot
% Mesh parameters nx = 20; ny = 20; % Number of elements in x and y directions Lx = 0.1; Ly = 0.1; % Domain dimensions [m] This code is because few online resources explain
% Assembly K(dofs, dofs) = K(dofs, dofs) + k_local; free_dofs) \ F(free_dofs)
end title('Truss Deformation (Scaled)'); axis equal;