Analysis With Matlab Code | Composite Plate Bending

% Reduced stiffness matrix Q (material axes) Q11 = E1/(1 - nu12 nu21); Q12 = nu12 E2/(1 - nu12 nu21); Q22 = E2/(1 - nu12 nu21); Q66 = G12; Q = [Q11, Q12, 0; Q12, Q22, 0; 0, 0, Q66];

% Node mapping node = @(i,j) (i-1)*ny + j; Composite Plate Bending Analysis With Matlab Code

The relationship between forces/moments and strains/curvatures is defined by the : % Reduced stiffness matrix Q (material axes) Q11

% Post‑process: extract nodal w, phix, phiy w = zeros(nNodes,1); phix = zeros(nNodes,1); phiy = zeros(nNodes,1); for i = 1:nNodes base = (i-1)*5; w(i) = U(base+3); phix(i) = U(base+4); phiy(i) = U(base+5); end Q22 = E2/(1 - nu12 nu21)

% Top and bottom z coordinates of the ply z_top = z(k+1); z_bot = z(k);

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