Verify that all fixed degrees of freedom are properly identified and removed from the active system matrices. Non-symmetric Global Stiffness Matrix Incorrect index mapping during the global assembly step.
%% ---------- STEP 4: SOLVE FOR DISPLACEMENTS ---------- Uf = Kff \ Ff; % Solve linear system matlab codes for finite element analysis m files
Verify that all fixed degrees of freedom are properly identified and removed from the active system matrices. Non-symmetric Global Stiffness Matrix Incorrect index mapping during the global assembly step.
%% ---------- STEP 4: SOLVE FOR DISPLACEMENTS ---------- Uf = Kff \ Ff; % Solve linear system