Transform element to rigid during simulation?

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

When an element reaches a particular stress or strain, it should maintain the corresponding stress-strain values and stop absorbing anymore energy. The idea is that the element should not deform any further but maintain its current state for future. Is there any property/law that allows to do this?

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2016

    Rigid bodies can be activated or deactivated with the options /RBODY/ON and /RBODY/OFF in the Engine files. Create separate engine files for this with the required run time and use /RBODY/ON - OFF options. 

    The input format is :

    /RBODY/ON or OFF

    rigid body id

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2016

    Can I do this for tetra elements with LAW2 and P_14 property? How do I do this in HyperMesh?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2016

    This option is for activating and deactivating rigid bodies. But I dont think this will serve your purpose ( want the elements to stop deforming and stay in its current state while other elements continue deforming).

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2016

    Alright Thank you very much George!

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