×
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

Non linear modeling ? A Starting point?

Non linear modeling ? A Starting point?

Non linear modeling ? A Starting point?

(OP)
Dear smart people:

So I have acquired an intense interest in learning how to model structures and capture nonlinearities. Interesting primarily in building type analysis. For purposes really of understanding the post-yield behavior of buildings with say mixed lateral systems, or non-conventional lateral systems.

Where does one start? Books videos? Classes are not an option for myself because I have a family and need to be home during my evenings.

Any advice is great! Thanks!

RE: Non linear modeling ? A Starting point?

Hi
may I ask a first question ...what did you study ?
What are you working now ? engineering office ?

Your question is very general...probably difficult to give an answer

One good pint to start is as always ... GOOGLE :)


best regards
Klaus

RE: Non linear modeling ? A Starting point?

I would start here (Link) and then work through the list of references at the end if you want to get more in depth.

RE: Non linear modeling ? A Starting point?

(OP)
Klaus: I studied general civil engineering. but have been a practising struct engineer for 10 years.

RE: Non linear modeling ? A Starting point?

there are two types of nonlinearity ... material NL (yielding and plastic behaviour) and geometrical NL (large displacement).

you might try MIT opencourseware, or, godforbid, youtube !?

another day in paradise, or is paradise one day closer ?

RE: Non linear modeling ? A Starting point?

I would start by looking up information and studies on Static Push Over analysis. Good place to start for concepts of post yield behavior, ductility and such.

RE: Non linear modeling ? A Starting point?

In addition to the sources given in the other replies, I'd suggest just playing around with simple structures in whatever FEA program(s) you have available, and working through any tutorials and/or sample analyses they provide.

Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/

RE: Non linear modeling ? A Starting point?

(OP)
That NEHRP document is great! Thanks for the tip. In practise we so often make judgment calls based on intuition and simple hand calculation. It is only recently I wish to get into the nitty gritty and get deep into the technicalities. Any tips on how to get started will be welcome.

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