Matlab Codes For Finite Element Analysis M Files Page

% Initialize Global Stiffness Matrix DOF = 2 * size(node, 1); K = zeros(DOF, DOF);

% Compute the stiffness matrix and load vector K = zeros(Nx*Ny, Nx*Ny); F = zeros(Nx*Ny, 1); for i = 1:Nx for j = 1:Ny idx = (i-1)*Ny + j; K(idx, idx) = 2*(1/(x(i+1, j)-x(i, j))^2 + 1/(y(i, j+1)-y(i, j))^2); F(idx) = (x(i+1, j)-x(i, j))*(y(i, j+1)-y(i, j))/4*g(x(i, j), y(i, j)) + ... (x(i+1, j)-x(i, j))*(y(i, j+1)-y(i, j))/4*g(x(i+1, j), y(i, j)) + ... (x(i+1, j)-x(i, j))*(y(i, j+1)-y(i, j))/4*g(x(i, j), y(i, j+1)) + ... (x(i+1, j)-x(i, j))*(y(i, j+1)-y(i, j))/4*g(x(i+1, j), y(i, j+1)); end end matlab codes for finite element analysis m files

Nodal displacements (m): 0 0.00000075 0