×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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!
*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

How does ALGOR deal with yielding?

thread810-227479

How does ALGOR deal with yielding?

How does ALGOR deal with yielding?

(OP)
It occured to me today when running an analysis that produced 300,000 psi that i did not know if ALGOR does any yielding analysis. I am assuming that if you are doing a linear stress analysis that the minute you have stresses past the yield point of the material, then the analysis will not be accurate.

RE: How does ALGOR deal with yielding?

That is correct.

With a Linear Stress Analysis, Algor (and all FEA programs really) extrapolate the stress/strain curve in the elastic region between 0 and the yield point.  Once you exceed the yield stress, it continues along the same slope of the curve to determine stresses at higher strains and/or deflections.

To get accurate results, you need nonlinear material models.  I typically run just about everything that I think may exceed yield with bi-linear material models.

--Scott
http://wertel.eng.pro

RE: How does ALGOR deal with yielding?

(OP)
That is too bad. I believe I only have the option to run with linear materials.

If I upgrade Algor to be able to do this, will it also provide failure analysis?

RE: How does ALGOR deal with yielding?

By "Failure Analysis" do you mean crack propogation?  Or just a Von Mises, or other failure criteria comparison?  If the former, you need a different type of analysis software.  If the latter, the linear stress post-processor has VM stress and others.

Algor non-linear will handle post-yield behavior and permanent deformation.

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! Already a Member? Login

Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close