In IGA beams, move the length computation in the denser quadrature for bending terms.
In IGA beams, move the length computation in the denser quadrature for bending terms.

amelmquist/chrono,amelmquist/chrono,armanpazouki/chrono,dariomangoni/chrono,projectchrono/chrono,rserban/chrono,rserban/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,amelmquist/chrono,Milad-Rakhsha/chrono,rserban/chrono,projectchrono/chrono,armanpazouki/chrono,dariomangoni/chrono,dariomangoni/chrono,projectchrono/chrono,dariomangoni/chrono,dariomangoni/chrono,amelmquist/chrono,projectchrono/chrono,rserban/chrono,rserban/chrono,armanpazouki/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,armanpazouki/chrono,Milad-Rakhsha/chrono,armanpazouki/chrono,rserban/chrono,rserban/chrono,amelmquist/chrono,Milad-Rakhsha/chrono,armanpazouki/chrono,projectchrono/chrono,amelmquist/chrono