Hi,
Thanks for your answer. My doubt about units came from a little bug of units display in the "Cable Element Properties" window.
But, in my case, the problem remains. i think that it is linked to the ratio sqroots[(Ymod.Area)/(Kbond)] i.e. the length of transfer (between 0,3 m and 1 m in my case) and/or linked to the ratio Sbond/Kbond i.e. the elastic limit in relative displacement (about 10^-4 in my case). For exemple, if i reduce drastically ymod, equilibrium is reached but forces in cable are unsignificant.