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Recent content by OscarPacheco

  1. OscarPacheco

    How to display frame elements numbers

    Good morning! I am new in SAP2000 and I am dealing with the visualization of frame element numbers. Sometimes I can visualize the frame element number (e.g: 67-1,67-2,67-3,110-1,70-4,etc.) as in the first image. However some other random times I can just visualice the frame number (i.e just...
  2. OscarPacheco

    Abaqus Parallelization.

    Ok, nice, I see. The Hyperthreading is reccommended to deactivate only because: - It requires more tokens -> more expensive license that is not compensated by the savings in computational time (at least in my case where for an analysis that took 3,8 hours to run with hyperthreading took 4,08...
  3. OscarPacheco

    Abaqus Parallelization.

    Thank you very much for your answers, they were very illustrative and clarifying. However, I do not understand yet why it is reccommended to disable Hyperthreading. This is not the first time I read it, I have read it on other posts but havent found a justification for this, just the advice. At...
  4. OscarPacheco

    Abaqus Parallelization.

    Good morning to all. I have some doubts regarding some aspects of parallelization. I read some of the posts regarding this topic on the forum but found different/opposite answers. - In Abaqus CAE, what does it mean Use multiple processors? Does that mean number of processors or number of...
  5. OscarPacheco

    Maximum strain response not matching eigenfrequencies

    Thanks for your reply. Do you mean then that this results are ok? The resonant frequency is for example 223,57 (from the .dat file, calculated in the second step) and the damped natural frequency is 220, 691 (from the graph, calculated in the third step). Damped frequency is a little bit lower...
  6. OscarPacheco

    Maximum strain response not matching eigenfrequencies

    Hello. I am doing a modal response analysis to one component which is bolted in its upper part. I first do a pretension step to take into account the force of the bolt, then I do *frequency step to obtain the natural frequencies and then I apply a unit sine sweep to obtain the responses. I am...
  7. OscarPacheco

    Order of points when using connector builder

    Hello! I am analysing one component that has pressure insid. The exterior of this component is join to a wall by one rigid link. I am trying to simulate this connection by using connector builder. It works fine, but the results vary depending on which point I select as first connection point...
  8. OscarPacheco

    Help to select interaction!

    Good morning to all of you. Please can you suggest me an interaction to simulate the movement in the video? I am trying to do the same and I am using Tie but it doesn't cause the same effect as the intervertebral disc deforms a lot in some places but not in others (see the attached image for an...
  9. OscarPacheco

    How to create a Fluid incompressible material

    Thank you both! Your info has been very useful! :)
  10. OscarPacheco

    How to create a Fluid incompressible material

    Hello! I need to create a material that has to work as an incompressible fluid. I cannot find in the interface the right command to create it. Any help? Thank you!
  11. OscarPacheco

    How to input acceleration?

    Hi! Thank you! I have tried some new things. I transformed all the vertebrae into discrete rigid bodies to reduce computational time. I assigned the mass and inertia and defined reference points for each vertebrae. However Abaqus says thta gravity loads are not applied to rigid bodies! ?????? so...
  12. OscarPacheco

    How to input acceleration?

    Thank you for your answers! According to the literature this is the movement the cervical spine must have after a 7g acceleration impact: As you can see the impact last around 250 ms. I am using abaqus dynamic explicit. Step time is 0.250 I am using gravity load of 98.1 m/s^2 and no...
  13. OscarPacheco

    Help with interaction/model definition

    Hello Mustaine3! This is the tie constrain I am using: I choose surface to surface discretization method and regardin to the position tolerance value I have chosen computed default (actually I won't know which value to put in the box). I selected the checkbox to adjust the slave surface to...
  14. OscarPacheco

    How to input acceleration?

    Thnaks both for your response! The analysis performed is dynamic. I have done it with gravity load and with the boundary condition of acceleration (two diferent jobs) and obtained similar results in both of cases. At this moment I am trying the load "Body Force". In all the cases I have applied...
  15. OscarPacheco

    How to input acceleration?

    Hello to all! I am trying to simulate a frontal crash and see the reactions of this to the cervical spine. I have some doubts about how to input the acceleration resulting of the crash in my model. At this moment I am trying two options but it seems they are not working somehow. 1- Input with...
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