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I modeled a cable using a straight strand "wire" to start the assembly, and one helical counteclockwise swept circular pattern of six wires, and another helical swept clocwise circular pattern of twelve wires.
i can try, but you need to be pretty specific about what it is you want to exactly with this cable... so this cable will be a multi-strand cable, you've already assigned it a material, and no you just need to model it's tensile strength over a pully system moving weights...? and if so, do you want to see what the stretch factors will be and by how much...? i'm just trying to understand exactly what you would like to do with this cable...
well, you are first going to have specify the type of steel strand cable you want, take it apart and measure each strand and then model the helical sweep for each one, assemble it into an assembly as a set of larger strands that make up the overall cable... but you will have to assign as detailed of a material property for that first cable strand and then it will apply to the overall cable assembly... once your done with that, then you can setup your FEA as you see fit... as far as the stretch factor is concerned, here are the basic calculations that you will need:
elastic stretch = (W x L) / (E x A)
where:
W = applied load (kN)
L = length of cable (mm)
E = strand modulus (kN/mm^2)
A = area of cable (2d x pi) / 4
i think i got that right... i'll double check, but this is the calculation you should be using in your FEA model... good luck...
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