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Recent content by abdu90

  1. abdu90

    Assigning different material at every time step in Abaqus

    Yes I have. I have also tried this one (see attached ) but for less number of fields and it worked. I don't believe there is problem in the code because I tried to run the model with an empty subroutine code and still the model with high fields didn't work. Maybe it is a memory problem ? if yes...
  2. abdu90

    Assigning different material at every time step in Abaqus

    Yes I am using Parallel computing. I am submitting the job using Abaqus user interface, I have also tried using Abaqus command but I faced the same problem. I am using windows 10 (Abaqus 2020). Regarding the field variables, I have so many because I wanted to relate time and space. To do that...
  3. abdu90

    Assigning different material at every time step in Abaqus

    I have tried to implement what you are suggesting using VUSDFLD as I am using explicit solver, but I faced a problem. When I increase the number of fields to 6 and above as shown in the figures bellow the job aborts and it gives this error message. ---------- RUNTIME EXCEPTION HAS OCCURED...
  4. abdu90

    Assigning different material at every time step in Abaqus

    Thank you both for your prompt reply's. @ FEA this thread is discussing different issue, he wants to assign different material sections at different steps. @ Mustaine3 yes I have tried that but the problem is that for each time step I have 20 values of young's modulus (it varies with length)...
  5. abdu90

    Assigning different material at every time step in Abaqus

    Hello, Is there is a way to assign different material sections at every time step in Abaqus/Explicit ? For example at time step 1, I want to assign steel-1 and at time step 2 I want to assign steel-2 .... and going on. I know that it is possible to write a script by python to have different...
  6. abdu90

    Stiffness degradation of steel rods with time using Abaqus/Explicit

    Hello, I am modeling a reinforced concrete beam under cyclic loading using Abaqus/Explicit. In my model I am trying to simulate the effect of time on the stiffness of the steel rebars using random fields (Each steel element should have a different young's modulus). As the time increases the...
  7. abdu90

    Defining spatially variable young modules with a 3D field variable E(x,y,z) in Abaqus using USDFLD

    Thank you very much for your prompt response and help. I implemented what you said and the model worked properly. However , I am not sure that what I have assigned is correct. Is there is a way to view the distribution of young modulus in the output file for either methods ( temperature...
  8. abdu90

    Defining spatially variable young modules with a 3D field variable E(x,y,z) in Abaqus using USDFLD

    Thank you very much for your replay. Do you think that the analytical mapped field can be used to define a spatially variable material, because I read from Abaqus manual that it can be only done for Loads, Boundary conditions, Predefined fields, and Interactions. If I will be using Predefined...
  9. abdu90

    Defining spatially variable young modules with a 3D field variable E(x,y,z) in Abaqus using USDFLD

    Hello, I am traying to define young modulus of a soil medium as a function of a 3D coordinates E(x,y,z). The coordinates and the average young modulus will be given in a table format (from excel sheet or .txt file) see example bellow. Is there is a way to do that using user subroutine USDFLD...

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