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Recent content by liq001

  1. liq001

    Question about passing information from VUSDFLD to VFric_COEF/Vfirc

    Any idea of this? Thanks
  2. liq001

    Question about passing information from VUSDFLD to VFric_COEF/Vfirc

    Hi guys, i am working on a problem using VUSDFLD and VFRIC/VFRIC_COEF. I am able to get the stresses using VGetVRM and store it as field variable in VUSDFLD. And I want to use this stored field variable to update friction coefficient in VFRIc, my question is how can I use my stored field...
  3. liq001

    Material calibration

    Yes, i understand what is your points and methods. I am wondering the methods to iterate my material strsss-strain curve instead of guessing? Manually adjust? If I am using my script.
  4. liq001

    Material calibration

    Thanks so much. Any specific link to the post? The difficulty is I can not know the cross section area as the testing sample is an irregular shape. Manually guess the stress-strain which not idea. Need some guidance here. If I had a start date for stress strain. How can I iterate this curve to...
  5. liq001

    Material calibration

    The problem is the cross section area is irregular shape which can not be extracted.
  6. liq001

    Material calibration

    Hi guys. Does anyone have good advice or methods for material calibration. Like I have an unknown material, I had a compression test and the output is a force displacement curve, and I need to came up a an stress-strain for this unknown material. Does anyone have good experience for this task...
  7. liq001

    Possible to add initial strain in ABAQUS?

    Hello all I am wondering if I am able to add initial strain in ABAQUS? I know I can use initial stress from predefined field. How about initial strain? Can I do that in ABAQUS? any work around? Thanks Lee
  8. liq001

    Mass scaling not working?

    @FEA_way. I have try frequency=1, it's perform the same as above. could you please let me know what else I can check for?
  9. liq001

    Mass scaling not working?

    Any idea of this?
  10. liq001

    Mass scaling not working?

    here is the imagehttps://files.engineering.com/getfile.aspx?folder=4ff73583-497e-4894-8ed4-a5b19b5cc1b5&file=Mass_scaling.png
  11. liq001

    Mass scaling not working?

    Hey guys, I have a quick question about mass scaling. In my current model I have applied semi-automatic mass scaling to a target time increment to 8e-7. However, looks like it's not working at all at where the time increment start to decrease. As you can see the attached image, the percentage...
  12. liq001

    How to apply a B.Cs that move the object in 45 degree? or certain angle?

    @ SWComposites, that because of I am doing peel test, I have no input of the load and I will need to peel one layer of material up to certain distance.
  13. liq001

    How to apply a B.Cs that move the object in 45 degree? or certain angle?

    Sorry not very sure what you explained but thanks for your input and help. I have attached a picture for your reference, the only task I would like to attach is move the peel arm in a distant in certain angle of...
  14. liq001

    How to apply a B.Cs that move the object in 45 degree? or certain angle?

    Thank for you input @FEA way. The problem is I need to ref nodes to move in certain displacement at a fixed angle, not only to rotate it. Think about a peel test, I would like to grab one edge of the peel arm and peel it at 45 degree direction in 30 mm? Thanks again for your help. Regards lee
  15. liq001

    How to apply a B.Cs that move the object in 45 degree? or certain angle?

    Hello all, I am a basic question for applying a displacement B.C. in ABAQUS. Do you guys have any idea about how to apply a displacement B.Cs on a reference node that allow the object to move in 45 degree or certain angle? for example, when I do peeling test, can I can pull the peel edge in a...
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