Composite Plate Bending Analysis With Matlab Code

Define supports (e.g., simply supported or clamped).

We discretize the plate domain ( 0 \le x \le a ), ( 0 \le y \le b ) into ( n_x \times n_y ) grid points. Composite Plate Bending Analysis With Matlab Code

[NM]=[ABBD][ϵ0κ]the 2 by 1 column matrix; cap N, cap M end-matrix; equals the 2 by 2 matrix; Row 1: cap A, cap B; Row 2: cap B, cap D end-matrix; the 2 by 1 column matrix; epsilon sub 0, kappa end-matrix; A deformation-based unified theory for composite plates Define supports (e

%% 6. Boundary Conditions (Simply supported: w=0 at edges, theta_tangential free) % Simply supported: w = 0 on all edges, but rotations free. % For simplicity, fix w on all boundary nodes boundary_tol = 1e-6; fixedDOFs = []; for i = 1:nNodes x = nodeCoords(i,1); y = nodeCoords(i,2); if abs(x) < boundary_tol || abs(x - a) < boundary_tol || ... abs(y) < boundary_tol || abs(y - b) < boundary_tol % Fix w (DOF 1) fixedDOFs = [fixedDOFs, (i-1)*ndof + 1]; end end freeDOFs = setdiff(1:nDofs, fixedDOFs); but rotations free. % For simplicity