% Load: tension on right edge (nodes 2 and 3) force_val = 1000; % N/m % Node 2: Fx = force_val * area? For simplicity, point load F_applied = zeros(size(nodes,1)*2, 1); F_applied((2-1)*2 + 1) = force_val * 0.05 * thickness; % Node 2, ux F_applied((3-1)*2 + 1) = force_val * 0.05 * thickness; % Node 3, ux
for e = 1:size(elements, 1) n1 = elements(e, 1); n2 = elements(e, 2); matlab codes for finite element analysis m files
% Element length L = nodes(n2) - nodes(n1); % Load: tension on right edge (nodes 2
% --- Assembly --- n_dof = size(nodes,1)*2; K = zeros(n_dof); F = F_applied; Assembly % - Initialize global stiffness matrix K
% 1. Pre-processing % - Define geometry, material properties, boundary conditions % - Generate mesh (nodes and elements) % 2. Assembly % - Initialize global stiffness matrix K and force vector F % - Loop over elements, compute element stiffness matrix, assemble
for e = 1:size(elements,1) % Element nodes n1 = elements(e,1); n2 = elements(e,2); n3 = elements(e,3);