×
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

Is there any one using LS Dyna for crash analysis here?

Is there any one using LS Dyna for crash analysis here?

Is there any one using LS Dyna for crash analysis here?

(OP)
Hello everyone,

I am using aluminium honeycomb as material for crash analysis. But I am using MAT_024: MAT_PIECESEWISE_LINEAR_PLASTICITY model for this purpose. Does anyone have any idea of how to obtain LCB, LCC plots? (strong axis hardening stress as a function of volumetric strain)
and values such as EAAU,EBBU,ECCU and GABU,GBCU,GCAU?

RE: Is there any one using LS Dyna for crash analysis here?

(OP)
sorry material card is MAT_126: MAT_MODIFIED_HONEYCOMB NOT MAT_024: MAT_PIECESEWISE_LINEAR_PLASTICITY  

RE: Is there any one using LS Dyna for crash analysis here?

DDM84 - There are a lot of helpful papers out there. I did a quick search and although the paper uses MAT_HONEYCOMB, I think that Reference 8 could be beneficial.

http://www.dynalook.com/international-conf-2004/08-6.pdf

I have to say that in the past when I was using LS-DYNA, I was part of a team of people and I had a lot of material characterization help, but that was my working experience. I would also say that having some kind of mentor role in the explicit dynamics field would be essential - I certainly would have been lost without it. I've been out of that field for long enough that the best I can offer you is above. Good luck.

When the future's architectured
By a carnival of idiots on show
You'd better lie low

RE: Is there any one using LS Dyna for crash analysis here?

(OP)
Hello Jetgirl8

Many thanks for the email. Unfortunately I don't have any mentoring for me in this company. They just provided me traning of LS Dyna but I m studying previous models and improving myself but finding material properties for Honeycomb is really tough job at this moment I trying to figure some ways for me.
But thanks for your advice and link what you provided.

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