×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Difference between ANSYS and ANSYS LS DYNA

Difference between ANSYS and ANSYS LS DYNA

Difference between ANSYS and ANSYS LS DYNA

(OP)
Hi,

Can anyone tell me what the difference is between using ANSYS static non-linear analysis and ANSYS LSDYNA? Is LSDYNA for extremely large deformations? and how would you recognize how much deformation ANSYS non-linear can handle?

RE: Difference between ANSYS and ANSYS LS DYNA

Dyna is an explicit code meaning it works on equations of motion rather than a stiffness matrix and hence is on stable for short duration event such as crash or ballistic studies. You can use it for quasi-static analyses if you are careful ........... just like I'm about to do. The 'Ansys' bit of Ansys Dyna is just to provide an Ansys interface for input/output.

You didn't say which version of Ansys you are using. There is an implicit and explicit version oth of which work via a stiffness matrix approach. They aren't much use for short duration events as the timestep become extremely small and the run times very long to get good results.

Horses for courses.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources