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  1. jpblasques

    Cross Sectional Properties script

    Hi, I think we can help you! We have written a code for cross section analysis which has the same capabilities as VABS. It is written in Matlab (will produce the executables if needed) and we give access to the source code repository. You can read more about it here www.becas.dtu.dk . Hope...
  2. jpblasques

    Automatic naming of components

    It works!!! Thanks!!! All the best, Zé
  3. jpblasques

    Automatic naming of components

    Hi everyone! I am trying to use components to organize my elements. It looks something like this: *DO,i,1,10 ESEL,S,,,E_ARRAY(i),E2(i) CMNAME='EL_i' <---- i should change and be stored as char CM,CMNAME,ELEM ALLSEL,ALL *ENDDO The question is I would like CMNAME to be numbered inside the do...
  4. jpblasques

    CALL SYSTEM in Fortran

    Hi everyone! I am trying to call a program from Fortran using the CALL SYSTEM subroutine. The problem has a little twist to it which is I am trying to run two commands in parallel. I am working on a UNIX machine. What I have now is: progam main . . . CALL SYSTEM('run_prog1 & run_prog2') . . ...
  5. jpblasques

    Calling ANSYS from MATLAB

    Hi everyone! I have two batch files written in ANSYS APDL which I want to call from MATLAB. There is a small twist to it which is I would like to run them in parallel and not sequentially. I am running both programs in a UNIX machine. ANSYS is a commercial FE code which I use for structural...
  6. jpblasques

    Calling ANSYS from MATLAB

    Hi everyone! I have two batch files written in ANSYS APDL which I want to call from MATLAB. There is a small twist to it which is I would like to run them in parallel and not sequentially. I am running both programs in a UNIX machine. So up to now I sorted out the following: 1. In the UNIX...
  7. jpblasques

    Failure criteria

    Hi all I am using a 3D formulation of the Tsai-Wu Strength index (TWSI) to assess the strength of a laminate. I would like to know if it is possible to decompose it into different contributions (like the tensile, compressive and delamination contributions)? That is, at a certain point of the...
  8. jpblasques

    Get failure criteria using ETABLE

    Hi everyone I am trying to take the values of the Tsai-Wu failure criteria of a laminate using the ETABLE, ESORT and *GET command. I am using SHELL99 and have set all the keyoptions correctly so it saves all the information needed. The code looks like this: CMSEL,S,PATCH1 !Select area of...
  9. jpblasques

    Design Optimization in ANSYS

    Hi everyone I am designing a composite propeller blade in ANSYS and I want to optimize layer angles. As such I want to use ANSYS Design Optimization (I know it is limited but nevertheless I am happy with it). I have a macro (named MAIN) where I call (using /input) many other files where I...
  10. jpblasques

    Shell-solid interface

    Well, first of all thanks for the help! I am sorry I have not answered before... and sorry for the long post below. The main reason why I have modeled the blade this way lies in the fact that I do not know any of the thicknesses to start with. This will be the result of an optimization routine...
  11. jpblasques

    Shell-solid interface

    Hi all I am modeling a composite marine propeller blade. I am using shell elements for the skins using shell99 and I have included a solid tip using solid 187 (the blade is hollow except for the tip region). The question is that the solid element does not share the rotational degrees of freedom...
  12. jpblasques

    Fiber draping in ANSYS

    Hi all I am modeling a composite propeller blade in ANSYS and need to work out the fiber draping or fiber orientation or element coordinate system orientation. Has anyone sorted out this problem without resorting to external commercial software like FIBERsim and such? I have found some...
  13. jpblasques

    Hydro elastic anlysis in ANSYS

    Hi all I have a CFD code which I want to couple with ANSYS. This means: I want to tell ANSYS to run the external CFD .exe file, wait for it to finish solving and then read the output file. How do I tell ANSYS to run the .exe file and only read the output file when the .exe file finishes...
  14. jpblasques

    Error when importing CAD files

    Hi It would be interesting to know which CAD program you are using. I have used Rhinoceros and there you can choose the type of IGES file from an endless list of options. You should choose PRO-E windows surfaces kind of iges. Good luck Zé
  15. jpblasques

    Difficulties importing IGS-files

    Hi If you have access to ANSYS workbench try to import the IGES file and then simply export it as a parasolid. Finally import the parasolid into ANSYS. Although an unorthodox method it has worked for me in the past. Good luck Zé
  16. jpblasques

    Genetic Algorithms in Ansys

    Thanks, that's very nice to know. Now I just have to work it out in APDL. I have read that it is truly time consuming this method, do you suggest any alternative? Thanks once again. Zé
  17. jpblasques

    Genetic Algorithms in Ansys

    Hi all I need to optimize laminates in regards to thickness and orientation and I thought about applying genetic algorithms. I am modelling a marine composite propeller blade in ANSYS and using APDL. I thought about building the genetic algorithm in APDL but not really sure if it is possible...
  18. jpblasques

    Orientation of element coordinate system in ANSYS

    Hi all! The situation: I am modelling a Marine propeller blade in Ansys. The blade outter shell or surface(don't consider the inner structure)is built in carbon fibre. I will be using Shell 99 elements for the modelling. I will be writing all comands in a script file using APDL. The problem: I...
  19. jpblasques

    Orientation of element coordinate system in ANSYS

    Hi everyone! Is there any reason why no one answers my question? Is it that stupid? or there's no solution? I would really appreciate if someone could give me a hand on this one. Thanks Zé
  20. jpblasques

    Orientation of element coordinate system in ANSYS

    Hi all! The situation: I am modelling a Marine propeller blade in Ansys. The blade outter shell or surface(don't consider the inner structure)is built in carbon fibre. I will be using Shell 99 elements for the modelling. I will be writing all comands in a script file using APDL. The problem: I...
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