cyclic tensile loading
cyclic tensile loading
(OP)
Hi, I am modelling a cyclic tensile loading of a non metallic wire (3D model with elastic material). I need the wire cyclically be loaded in tension between 50 N to 150 N for 100 cycles at 1HZ.
Does anyone have a suggestion for it?
Does anyone have a suggestion for it?





RE: cyclic tensile loading
Forever Young.....
RE: cyclic tensile loading
RE: cyclic tensile loading
1-->0
2-->1
3-->0
4-->1
5-->0
how does it change the force from 50 to 150 and how i can apply the frequency of 1Hz?
RE: cyclic tensile loading
Why would you think that the 10th or 60th, or 100th cycle is going to be any different than the first?
The more I think about this, this is pretty rudimentary. Is this for a school project?
RE: cyclic tensile loading
the material i am using is hyper elastic (moony-rivlin) and the load is initially set to 50 N.
this is the simulation of a cyclic loading test which we normally do it in a mechanical workshop.
1- from the experiment we know the result will be different after predefined cycles for example result of 10 cycle is different with 100 cycle in term of the displacement of the wire
2- the frequency is important as it will change the strain rate effect and change the result
so I have to define frequency but how?
RE: cyclic tensile loading
*AMPLITUDE, DEFINITION=PERIODIC, NAME=Curve-1
...
*CLOAD, AMPLITUDE=Curve-1
1,2,100
..
This will apply a load of 100 units to node 1 in direction 2 that will be scaled by the amplitude 'Curve-1'.
Have a look at section 28.3.1 'Amplitude Curves' in the user manual - covers most of what you need to know.
Regards
Martin Stokes CEng MIMechE
RE: cyclic tensile loading
My recommendation would be to make 200 steps (odd-steps would be the load of 50N, even-steps would be the 150N load), with the time span of each step equal to 0.5 seconds. Then, in the post processing, you can see if the displacement changes as a function of time.