% Plot the solution surf(x, y, reshape(u, Ny+1, Nx+1));
Comprehensive Guide: MATLAB Codes for Finite Element Analysis (M-Files) matlab codes for finite element analysis m files
% Calculate stress at element center (Gauss point 0,0) stress(e, :) = element_stress_Q4(el_coords, el_disp, E, nu, plane_stress); % Plot the solution surf(x, y, reshape(u, Ny+1,
free = setdiff(1:DOF, fixed);
: Codes are written for clarity rather than peak performance, making them easy for beginners to read and modify. % Plot the solution surf(x
for e = 1:nele sctr = element(e, :); el_coords = node(sctr, :); el_disp = d([2 sctr-1; 2 sctr]); % Extract element displacements