I have a bit of a hard time finding a way to use the output of my function handle:
effStress = @(~,state) (2700*9.81*4000*1e-6)-state.u;
K = 1e-12-(0.04343*((0.012+0.013)/2));
I understand that I apparently cannot multiply K with effStress, but even a matrix multiplication doesnt work.
Could anyone help me on that?