What are the things that I've done wrong in this simulation?

Paphatsorn
Paphatsorn Altair Community Member
edited November 2021 in Community Q&A

Hello, all.

I am doing a explicit analysis in Radioss solver, a drop weight impact test on composite plate. It can completely run but when I look at the result. It doesn't show any animation. So, I will attach the file for anyone can check. Please help me.

 

MAT25.hm 272.5K
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Best Answer

  • Rogerio Nakano_21179
    Rogerio Nakano_21179 New Altair Community Member
    edited November 2021 Answer ✓

    hi

     

    you are using /INIVEL, but as all nodes of the impactor are attached to the /RBODY, you need to apply the velocity to the /RBODY main nodel.

    Applying to the secondary nodes will not transfer the kinematic to the main node.

    I hope this is helpful


    Regards

Answers

  • Rogerio Nakano_21179
    Rogerio Nakano_21179 New Altair Community Member
    edited November 2021 Answer ✓

    hi

     

    you are using /INIVEL, but as all nodes of the impactor are attached to the /RBODY, you need to apply the velocity to the /RBODY main nodel.

    Applying to the secondary nodes will not transfer the kinematic to the main node.

    I hope this is helpful


    Regards

  • Paphatsorn
    Paphatsorn Altair Community Member
    edited November 2021
    Rogerio Nakano_21179 said:

    hi

     

    you are using /INIVEL, but as all nodes of the impactor are attached to the /RBODY, you need to apply the velocity to the /RBODY main nodel.

    Applying to the secondary nodes will not transfer the kinematic to the main node.

    I hope this is helpful


    Regards

    Thank you so much. Now, the animation can play but it does not go and reach the plate. It go down just a few second and bounce back to the top.

    How can I solve this? Which parameter I have to change to make it drop to the plate?

    Thank you in advance.

  • Rogerio Nakano_21179
    Rogerio Nakano_21179 New Altair Community Member
    edited November 2021

    I suggest you look into this example for the boundary conditions.

    RD-E: 2600 Ruptured Plate

    https://2021.help.altair.com/2021.2/hwsolvers/rad/topics/solvers/rad/ruptured_plate_example_r.htm

     

    Regards

     

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