%% Finite Difference Grid Nx = 41; Ny = 25; % odd numbers to include center dx = a/(Nx-1); dy = b/(Ny-1); x = linspace(0, a, Nx); y = linspace(0, b, Ny);
boundary_nodes = []; for i = 1:Nx for j = [1, Ny] boundary_nodes = [boundary_nodes, idx(i,j)]; end end for j = 2:Ny-1 boundary_nodes = [boundary_nodes, idx(1,j), idx(Nx,j)]; end boundary_nodes = unique(boundary_nodes); Composite Plate Bending Analysis With Matlab Code
%% Plot Deflection figure; surf(x, y, w'); xlabel('x (m)'); ylabel('y (m)'); zlabel('Deflection (m)'); title('Composite Plate Bending Deflection (CLPT)'); colorbar; axis tight; view(45,30); %% Finite Difference Grid Nx = 41; Ny
% Ply stacking [0/90/90/0] (symmetric) theta = [0, 90, 90, 0]; % degrees z = linspace(-h/2, h/2, num_plies+1); % ply interfaces Ny = 25
% Set rows for boundary to identity K(boundary_nodes, :) = 0; for n = boundary_nodes K(n,n) = 1; F(n) = 0; end