Why do I use the bonding model and set the Normal/Shear Strength too high, which makes it easy to explode?

bigshow
bigshow Altair Community Member
edited March 19 in Community Q&A

Shouldn't it be harder to explode as it gets bigger？image

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited March 18

    Hi,

    As the strength is increasing the forces will also be higher before the bonds break.  Typically higher forces require smaller time-steps to be stable.

     

    I'd recommend decreasing the EDEM time-step in this case. You could create a small test case with the same material properties and forces to check time-step stability.


    Regards

    Stephen

  • bigshow
    bigshow Altair Community Member
    edited March 19
    Stephen Cole_21117 said:

    Hi,

    As the strength is increasing the forces will also be higher before the bonds break.  Typically higher forces require smaller time-steps to be stable.

     

    I'd recommend decreasing the EDEM time-step in this case. You could create a small test case with the same material properties and forces to check time-step stability.


    Regards

    Stephen

    Thank you

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