User's Manual Tutorials

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  • dsrawlins
    Developer
    • Dec 2008
    • 366

    User's Manual Tutorials

    These are the input files for the tutorials in the PreView user's manual.
    Last edited by dsrawlins; 10-12-2010, 02:00 PM.
    Department of Bioengineering, University of Utah
    Scientific Computing and Imaging institute, University of Utah
  • mardo
    Junior Member
    • Sep 2010
    • 2

    #2
    Thanks for these tutorials, i'm interested in this project!
    Last edited by mardo; 09-26-2010, 01:21 PM.
    Phen375
    Uniquehoodia

    Comment

    • michalacadova
      Member
      • Jan 2010
      • 80

      #3
      Not a pure rotation

      Hi,
      I have tried the twisted bar and it does not what it should. I have compared yours and mine files and I found that the only difference is, that you have the contact and constraints defined in the step 1, but I have it in the initial one. However, I did everything as it is in the tutorial. Then happens, that the bar is not only twisting, but also tilt slightly (even there are the restraints for the rigid body in the x,y,z direction and the rotation Ry, Ry as well. Note I have the same coordinate system).

      How do I define that all the boundary conditions, contact and constraints are define not in the initial step but in the step 01?

      Michala

      Comment

      • michalacadova
        Member
        • Jan 2010
        • 80

        #4
        Billet problem - bulging of the side wall

        Hi,
        I have a question concerning the billet problem from the preview tutorial. When I define the rigid wall contact it is kind of an infinite plane, right? So how it is possible that the right side of my box bulged over this boundary? I attached the screen shot. Secondly, I know it is a basic mathematical stuff, but I just don´t see it right now – the equation for the plane with the coefficients a=0, b=1, c=0, d=-1 is then y-1=0. But doesn´t that mean that the plane intersects the y-axis at “1”? However, it is the bottom rigid wall, so it should be “-1”. Or I missed something?

        Thanks
        Michala

        Comment

        • maas
          Lead Code Developer
          • Nov 2007
          • 3400

          #5
          Hi Michala,

          It is probably easier if you can send us your input files. Then we can take a look at them and see where the potential problem lies.

          Cheers,

          Steve.
          Department of Bioengineering, University of Utah
          Scientific Computing and Imaging institute, University of Utah

          Comment

          • michalacadova
            Member
            • Jan 2010
            • 80

            #6
            Twisted Bar Problem

            Hi,
            here is my twisted bar problem, which is actually not twisting I checked all the setting, but I still can’t see where the problem is.

            Thanks
            Michala

            Comment

            • maas
              Lead Code Developer
              • Nov 2007
              • 3400

              #7
              Hi Michala,

              When I run the file you attached, I do see the bar twisting, so I'm not sure I understand what the problem is. Is the bar not twisting at all for you? Is it doing something else?

              Steve.
              Department of Bioengineering, University of Utah
              Scientific Computing and Imaging institute, University of Utah

              Comment

              • michalacadova
                Member
                • Jan 2010
                • 80

                #8
                Hi,
                it is twisting, but in the same time it bends/turns slightly. Moreover, it do not make so many turns as your example does. I have attached the screen shot of the final state of the tutorial example and mine. You can see now the difference in the behaviour of the bar.

                Michala

                Comment

                • maas
                  Lead Code Developer
                  • Nov 2007
                  • 3400

                  #9
                  Ah, I see, it looks like tutorial 3 has changed slightly from our initial version. I'll see if I can fix that. In any case, if you move the center of mass of the rigid body to 3,0,0.5 and increase the rotation angle to 3.14 (if I remember correctly) you should get the same answer.

                  Cheers,

                  Steve.
                  Department of Bioengineering, University of Utah
                  Scientific Computing and Imaging institute, University of Utah

                  Comment

                  • michalacadova
                    Member
                    • Jan 2010
                    • 80

                    #10
                    That helped, thank you.

                    Comment

                    • Namal
                      Junior Member
                      • Apr 2012
                      • 16

                      #11
                      Hi,

                      I have done the first example( A simple tensile test) on Preview user manual and saved it as a preview file. How can i run it in FEBio and get the results ?. I export the preview file to FEbio format. Then tried to run it in FEbio,then what happens is command window appears and disappears instantly. I am not sure why?
                      Can someone please help. Thanks a lot.

                      Namal

                      Comment

                      • weiss
                        Moderator
                        • Nov 2007
                        • 124

                        #12
                        Hi Namal - please take a look at this post:

                        Tutorial-1-Running-FEBio-from-the-command-line-on-Windows
                        Jeffrey A. Weiss
                        Professor, Department of Biomedical Engineering, University of Utah
                        Director, Musculoskeletal Research Laboratories
                        jeff.weiss@utah.edu

                        Comment

                        • SucaBlyat
                          Junior Member
                          • May 2017
                          • 8

                          #13
                          Hi,

                          I am getting to know PreView, FEBio and PostView, so I'm going through the tutorials now.
                          Tutorial 6, the multi-step analysis, won't run for me: FATAL ERROR: Missing attribute "surface" of tag "surface_load" (line 929)

                          Please find attached my input file.

                          Thanks
                          Attached Files

                          Comment

                          • maas
                            Lead Code Developer
                            • Nov 2007
                            • 3400

                            #14
                            Hi,

                            This was a bug in PreView. A new version of PreView is uploaded. Please try it and let us know if the problem is solved.

                            Thanks,

                            Steve
                            Department of Bioengineering, University of Utah
                            Scientific Computing and Imaging institute, University of Utah

                            Comment

                            • SucaBlyat
                              Junior Member
                              • May 2017
                              • 8

                              #15
                              Hi, I'm still working on a 32-bit machine, is there an update for this as well?

                              Comment

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