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  • Users: blazzzzzz
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  1. blazzzzzz

    Simple hyperlasticity

    you seem to know quite a lot about it, I actually thought I was doing something very basic. I have tried the tet meshing, the job is completed and does not give any error message. Even if I put a force of 50. BUT the results show almost no deformation. And if I put a bigger force (100), then it...
  2. blazzzzzz

    Simple hyperlasticity

    well what I call magnitude is the force. So it works if I put 1, and not 2, actually I would need a lot more than that. I tried to put 0.05 and it works also, but the deformation is very very small of course...
  3. blazzzzzz

    Difference meshing hex, hex-dominated, tet?

    Hi, I am just doing a simple compression test on a cylinder, with hyperelasticity (Mooney Rivlin coefficients), fixed on one edge and pressure applied on the other. I get negative eigenvalues and excessive distortion and job's aborted. But if I change the element shape from hex to tet, then...
  4. blazzzzzz

    Simple hyperlasticity

    Actually with a magnitude of 1, the jobs says its completed but I just checked the msg file, it also says it found negative eigenvalues and excessive distortion. Actually a job of 2 or 30 or anything more would give the same result. So somewhere between 1 and 2 it just stops calculating.... If...
  5. blazzzzzz

    Simple hyperlasticity

    Thank you very much for your reply. I have tried decreasing the time period in the load step, and also change the increment size. But it just wouldn't work. If I apply a load magnitude of 2 it doesnt work, but 1 works....I dont get it. Thank you anyway Ben
  6. blazzzzzz

    Simple hyperlasticity

    Hi, I am trying to model an intervertebral disc, in compression. So for now it's just a rod with 2 thin endplates on both edges, one is fixed and one has a pressure load compressing everything. I am heading towards making it more realistic in terms of geometry and ideally it will...
  7. blazzzzzz

    Simple hyperlasticity

    Hi, I am trying to model an intervertebral disc, in compression. So for now it's just a rod with 2 thin endplates on both edges, one is fixed and one has a pressure load compressing everything. I am heading towards making it more realistic in terms of geometry and ideally it will...

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