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Recent content by tsukuba

  1. tsukuba

    a wrong unit system used in verification test 201?

    Thanks Drej, I am sorry I cannot get what you said. I think the key point is the displacement controlled analysis. I want to know why the units of force are Newtons in a displacement controlled analysis if the stresses are in MPa. In fact, I think the units of force are MegNewtons, because...
  2. tsukuba

    a wrong unit system used in verification test 201?

    Hi, VM201 is the Verification Test of Rubber Cylinder Pressed Between Two Plates. I noticed the VM201 used a strange unit system where length unit is m, force unit is N but Young's modulus unit is MPa. /VERIFY,VM201 ... R = 0.2 ! RADIUS OF CYLINDER !!no unit is given in...
  3. tsukuba

    How to treat unloading step

    Hi,dericcio, Would you mind to share your successful experience with a ansys newbie? Although I understand how to treat the loading and unloading, the convergency to simulate my indentation problem is very bad. I like to hear your message more, if you have a similar problem. Thanks.
  4. tsukuba

    How to get the NX, NY for Contac48 output data

    Frankly to say, I don't know how to use "Table 48.2 CONTAC48 Element Output Definitions. " To get FNTOT, I will use "Table 48.3. CONTAC48 Item and Sequence Numbers" by the following command: ETABLE,FNTOT_lable,SMISC, 1 So would you mind to tell me how to get it by using...
  5. tsukuba

    How to get the NX, NY for Contac48 output data

    I want to calculate the contact force in the y direction. So I need the normal vector components from Contac48 output data. Could anyone tell me how to get them? Thanks a lot.
  6. tsukuba

    How to treat unloading step

    I think I got it. If load=P for loading step, the load in unloading step should be load=0, not load=-P. But why cannot I find any explanation in ansys documents? Did everyone have to do a lots of trials to understand this point?!!!
  7. tsukuba

    How to treat unloading step

    It is greatly appreciated if you can give me a command line file for a simple problem such as cantilever or something else. Thanks.
  8. tsukuba

    How to treat unloading step

    But I cannot understand the meaning of load = @zero in the last response. For example, if I do a trial for elastoplastic problem of a cantilever beam with an end load, how can I create the unloading step file? Many thanks Tsukuba
  9. tsukuba

    How to treat unloading step

    I am just starting to use ANSYS. I want to simulate indentation cycle of loading and unloading. But I don't know how to use ANSYS in the unloading step. Should I superpose a problem of loading at max load with another problem of opposite load? Your suggestions or comments are highly appreciated...
  10. tsukuba

    Fatigue remaining life

    Thanks Metalguy, The plastic replica may be the only NDE method to evaluate the remaining fatigue life.
  11. tsukuba

    Fatigue remaining life

    Metalguy, The fatigued structure is stainless steel. The plastic replica method can provide information about the tiny cracks only on the surface. Even we know these tuny cracks exist, we still cannot say how long the remaining service life of the structure has.
  12. tsukuba

    Fatigue remaining life

    Metalguy, I suppose I don't know the previous record of the fatigued structure. Dose it mean we cannot estimate its remaining fatigue life by a nondestruction method in this case?
  13. tsukuba

    Fatigue remaining life

    I want to look for a nondestruction method to evaluate the remaining life of a fatigued structure, because I have to continue to use it after the evaluation test. Can anyone provide some links or published papers about it? Thank you in advance.
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