SEQUENTIAL DROP SIMULATION IN RADIOSS?

Mintu
Mintu Altair Community Member
edited February 2022 in Community Q&A

Hi,

I have to perform drop test simulation twice from 1.5 m of height. I have simulated drop test once in analysis. but i dont know the option or setup to perform sequential drop test simulation. can any body help out in this?

Thanks in advance.

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Answers

  • Adriano_Koga
    Adriano_Koga
    Altair Employee
    edited January 2022

    i'm not expertn in Radioss, but I believe you can use the /STATE/ card to re-use straesses and strains from a previous run as initial condition to another run.

     

    You can request the first run to save these state files and add them as an include to another run.

    InspireForm use these when you run a multi-stage forming simulation.

  • Mintu
    Mintu Altair Community Member
    edited February 2022
    Adriano A. Koga_21884 said:

    i'm not expertn in Radioss, but I believe you can use the /STATE/ card to re-use straesses and strains from a previous run as initial condition to another run.

     

    You can request the first run to save these state files and add them as an include to another run.

    InspireForm use these when you run a multi-stage forming simulation.

    Dear Adriano, I have tried with STATE Card but the contacts and boundary conditions are not exported. can you help me for sequential drop.

    Thanks in advance,

     

  • Adriano_Koga
    Adriano_Koga
    Altair Employee
    edited February 2022
    Mintu said:

    Dear Adriano, I have tried with STATE Card but the contacts and boundary conditions are not exported. can you help me for sequential drop.

    Thanks in advance,

     

    state files carry only stress/strain and thickness to another model.

    All the other you should build a new model, by keeping the IDs only.

     

    In you case you're probably looking for restarting your analysis from a previous one. Take a look at 'restart' in Radioss documentation.

  • Mintu
    Mintu Altair Community Member
    edited February 2022

    Thanks for your reply. I have simulated but i dont know the results prediction.and one more thing how to simulate rebound behaviour in drop test simulation?

     

     

  • Adriano_Koga
    Adriano_Koga
    Altair Employee
    edited February 2022
    Mintu said:

    Thanks for your reply. I have simulated but i dont know the results prediction.and one more thing how to simulate rebound behaviour in drop test simulation?

     

     

    if you define a total time enough to capture rebound, and also include gravity in your simulation, you should capture rebound.

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