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Recent content by geo2006

  1. geo2006

    How to adjust colorbar range in a matlab plot

    Thanks, Greg. I haven't solved my problem yet, just trying alternative solutions like your suggestion. Seems a good idea, i'll try it. (BTW, sorry for my delay in the response) FGS
  2. geo2006

    How to adjust colorbar range in a matlab plot

    Hi everyone, new to Matlab here. I have a n x m matrix with values in the range 0.0-3.0 aprox. I want to make a plot using only 2 colors: red if value < 1 and green otherwise. I used imagesc with colormap ([1 0 0; 0 1 0]). The problem is that the colorbar divides the range from 0 to 1.5 (red)...
  3. geo2006

    Plot yielded elements

    Thank you, Sdebock, what a fast answer! The simplicity of one who knows. Very easy (and helpful). Regards FGS
  4. geo2006

    Plot yielded elements

    Hi everybody, I ran a 3D plastic model of mining labours in rock. Is it possible to plot in the Visualization Module only the yielded (plastified) elements? Thanks in advance. FGS
  5. geo2006

    Problems loading diagnostic info in odb file

    Hi everybody, I have a problem that sure is easy to solve, but I don't get how, so any help will be appreciated. Using Abaqus 6.10, sometimes I get elements with negative volume (Abaqus identified them in set ErrElemVolSmallNegZero) and sometimes, in contacts I get nodes used more than once as...
  6. geo2006

    Removing elements that meet some criteria

    Hi everybody, I'm trying to model the caving process in mining (progression of a underground excavation in rock). I have a 2D model formed by a relatively large amount of elements. The analysis is made in several steps. In the first step some elements are removed (*MODEL CHANGE, TYPE=ELEMENT...
  7. geo2006

    SIGINI SUBROUTINE CAN BE IMPLEMENTED IN CAE????

    "is it possible to use SIGINI in Abaqus CAE?"... Yes, it is. You will need: 1. Install Visual Studio (I use VS 2005) 2. Install Intel Fortran compiler (I use Intel Fortran 9.1). 3. Adjust environment variables so Abaqus can "see" VS and Fortran. (see for example...
  8. geo2006

    Soil Excavation

    Hi, just 2 ideas. For the contact issue, are you really interested in studying the contact behavior? If you only are trying to transmit forces between parts, using constraints instead of contacts may be easier. To the second part: I think you can model the process activating and deactivating...
  9. geo2006

    Materials with predefined stresses (using SIGINI)

    yes, you're right. I see now that (obvious) it's ilogical to start an analysis with an unbalanced field stress. And what Abaqus do (force equilibrium in a geostatic step) is a good way to get things work. Sorry for making lose your time. Regards.
  10. geo2006

    Materials with predefined stresses (using SIGINI)

    Hi everybody, I have to apply a field stress in my 3D model (just a very simple field, something like s11=num1; s22=num2; s33=num3). I used subroutine SIGINI and initially, the stresses are loaded o.k. The problem is that in the second step of the analysis (e.g. the first after INITIAL) the...
  11. geo2006

    Removal of parts during analysis

    just wonder...what if you define a material (using its stress-strain curve) in such way that exceeded some predefined strain its resistence drops near 0?.It would behave like removing it in some way. I'm wrong? Regards.
  12. geo2006

    Comparing outputs between steps

    Thanks, gurmeet. I tried your suggestion and worked fine. Now I'm getting good results faster. Thanks again.
  13. geo2006

    Comparing outputs between steps

    Thanks gurmeet2003, I tried to apply your advise, but I can't combine the displacements of 2 or more steps. Using the "Create Field" and "Edit Field Output Request" menus I can select a variable, make a combination of them, etc, but I don't know how to specify 2 values from different steps. I...
  14. geo2006

    Comparing outputs between steps

    Hi everyone, I'm modeling a stepped excavation to analyze the increments in deformation as soil is taken out. I've defined 4 steps and want to know not only the total defs, but also between steps. Is it possible to define an output like Ux_1-2 = Ux_step2 - Ux_step1 in such way that I can see...
  15. geo2006

    Removal of parts during analysis

    Hi, again, thanks Corus for your help. As I said, I'm just learning Abaqus, so sometimes little tips make the difference between solving a problem or giving up. I now have my model working fine. To Conor: sorry, I can't help in your problem. Regards Fdo.
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