×
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

Femap with NX Nastran - Stress Location for TET4 and TET10 elements

Femap with NX Nastran - Stress Location for TET4 and TET10 elements

Femap with NX Nastran - Stress Location for TET4 and TET10 elements

(OP)
Hello everyone!

Can anyone explain me how Nastran calculates stress in the linear tetrahedral element? Is the stress calculate in one integration point, which coresponds to centorid of element? And how to view this value in Femap with postprocessing toolbox?
On the other hand, i want to calculate stress value at node of linear tetrahedral element, so which is correct way for calculating and presenting results?

And similary, for tet10 elements does Nastran calculate stress in three integration points, and then in node presents value of nearest integration point?

Thanks in advance.

RE: Femap with NX Nastran - Stress Location for TET4 and TET10 elements

Hi,

I do not use NX, but in MSC Nastran the integration options are explained within PSOLID entry in que Quick Reference Guide.

Anyway, I usually work with tet10, specially if I am looking for stresses. Tet4 elements are very stiff (by definition, the strain is linear so the stress will be constant within the element).

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

eBook - Mastering Tolerances for Machined Parts
When making CNC machined parts, mastering tolerances can be challenging. Are general tolerances good enough? When does it make sense to call out for tighter tolerances? Do you need a better understanding of fits, datums, or GD&T? Learn about these topics and more in Xometry's new e-book. Download Now
eBook – How to Choose the Correct Corrosion Testing Method
When designing a metal component, engineers have to consider how susceptible certain alloys are to corrosion in the final product’s operating environment. In a recent study by NACE (National Association of Corrosion Engineers), it was estimated that the direct and indirect costs of corrosion in the United States is approximately 6.2% of the GDP. In 2016, that cost exceeded $1 trillion dollars for the first time. 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