Matlab Codes For Finite Element Analysis M Files May 2026

% Nodes (x, y) nodes = [0, 0; % Node 1 0.1, 0; % Node 2 0.1, 0.1; % Node 3 0, 0.1]; % Node 4

% --- Assembly --- n_dof = size(nodes,1)*2; K = zeros(n_dof); F = F_applied; matlab codes for finite element analysis m files

% Apply force F_global(force_dof) = applied_force; % Nodes (x, y) nodes = [0, 0; % Node 1 0

% Assembly into global matrix dof_list = [n1, n2]; K_global(dof_list, dof_list) = K_global(dof_list, dof_list) + ke; end % Nodes (x

% --- Post-processing --- disp('Nodal displacements (m):'); disp(U);

% B matrix for CST B = zeros(3, 6); for i = 1:3 j = mod(i,3)+1; k = mod(i+1,3)+1; B(1, 2*i-1) = (y(j)-y(k)) / (2*area); B(2, 2*i) = (x(k)-x(j)) / (2*area); B(3, 2*i-1) = (x(k)-x(j)) / (2*area); B(3, 2*i) = (y(j)-y(k)) / (2*area); end

disp('Nodal displacements (m):'); for i = 1:size(nodes,1) fprintf('Node %d: ux = %.4e, uy = %.4e\n', i, U_nodes(i,1), U_nodes(i,2)); end