static crashing simulation set-up? (lsdyna)

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

Hi,

 

I want to do a crash simulation on a tube at the speed 1mm/s (static). Is lsdyna capable to do it? If yes, how should I set up the time step?

 

mesh size: 3mm

termination time: 600000ms

 

 

Many thanks.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2014

    Hi,

     

    don't do it with LSDyna. It is a explicit solver for analyzing problems including high velocity, large deformation... using a explicit time integration.

    So LSDyna needs a small time step !!! There are a lot of informations at the internet...

     

    Regards,

    Mario

  • tinh
    tinh Altair Community Member
    edited June 2014
    Altair Forum User said:

    Hi,

     

    I want to do a crash simulation on a tube at the speed 1mm/s (static). Is lsdyna capable to do it? If yes, how should I set up the time step?

     

    mesh size: 3mm

    termination time: 600000ms

     

     

    Many thanks.

    perhaps you should use *CONTROL_IMPLICIT, take a view on http://www.dynaexamples.com/implicit for setup guide

    first understand what IMPLICIT/EXPLICIT does and pay attention on contact issue

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