Hello, I am a PhD student in textiles. I was wondering whether anyone has any experience with cables and stuff. For my PhD, I have implemented a Cosserat model for these one dimensional structures as described by the equations of motion given in this article. Ofcourse one tries to validate their model, so I took a few basic static and a dynamic problems out of elasticity theory that have an analytical solution - like e.g. what is the deflection curve of a cantilevered beam with a load at its end, a uniformal load, that kind of stuff - and compared the simulation results. The comparison was very good. However, for one particular problem, the results of my simulations differ significantly from what some other researchers mention. The particular problem is that of a horizontal (= x-direction, vertical = z-direction) cantilevered cable without any twist, solely loaded by its own weight, of which the ends are moved towards each other. Inituitively, one expects that the deformation will occur only in the vertical xz-plane in which the cable is located, as all forces are in that plane. This is also the result of my simulations. However, other researchers seem to say that there will develop a deformation that is out of plane and loop formation will occur. A movie of which can be viewed at this site: http://seesar.lbl.gov/ANAG/staff/bono/html/sample_results.html What I am asking is this: is there anyone busy with the same kind of things that can tell me whether a cantilever cable hanging under gravity, with two ends approaching each other, will indeed deform out of the xz-plane?