Non linear Transient Analysis

Karthic_22061
Karthic_22061 Altair Community Member
edited October 2020 in Community Q&A

Hi ,

I tried a simple case for nonlinear transient in Optistruct and its considering the dynamic effects as told in help

 

I still wonder how come a nonlinear transient analysis takes dynamics(inertia / momentum) into consideration but the simple direct transient does not ?

If non-linearity(Contact/ Geometric/ material )  is the difference between those two cases, how do they vary dynamically

 

Please help me know the reason for it.

Thank you

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2017

    Hi Karthik,

     

    I will try to find relevant information for you. 

  • Karthic_22061
    Karthic_22061 Altair Community Member
    edited December 2017

    Hi Prakash,

    Any relevant materials for the  doubt ?

    Altair Forum User said:

    Hi ,

    I tried a simple case for nonlinear transient in Optistruct and its considering the dynamic effects as told in help

     

    I still wonder how come a nonlinear transient analysis takes dynamics(inertia / momentum) into consideration but the simple direct transient does not ?

    If non-linearity(Contact/ Geometric/ material )  is the difference between those two cases, how do they vary dynamically

     

    Please help me know the reason for it.

    Thank you?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2017

    Hi Karthik,

     

    Right now I can't get the integration scheme but all I can say if you have observed we are coupling transient Dynamic and non linear where large displacements are involved. 

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