How do I apply concentrated force in FF++?
So assume I have force
Vh(Th, P1); Vh fx, fy, fz;
force = (fx, fy, fz). Now In problem definition, I want to apply these forces to the nodes, for example in linear elasticity
solve lame([u, v], [uu, vv]) = int2d(Th)( lambda * div(u, v) * div(uu, vv) + 2.*mu * ( epsilon(u,v)' * epsilon(uu,vv) ) ) - // Forces applied to nodes. + on(4, u=0, v=0) ;
Is there a way I can do that?