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

Which stress to look ?

Which stress to look ?

Which stress to look ?

HI all,

I would like to know in which cases, we should consider looking into Principal stresses and IN which case, we should look into Normal stress ?

An example illustration would be very helpful.


RE: Which stress to look ?

It depends. What's your situation?

RE: Which stress to look ?

this question cannot be answered ......
as TSG said....it depends on the situation

RE: Which stress to look ?

It depends on your model, perspective, and modeling goal. Principal stress is an overall combined stress quantity that gives you general information about the deformed body(es), while the normal and shear stresses show you the stress magnitude in specific directions.

One FEA package for all engineering simulation needs

RE: Which stress to look ?

This is not a FEM question. What stress would you use if you were doing the analysis by hand?

This is a strength of materials issue; you need to first understand the material behavior, then understand what type of analysis you are doing.

Does anyone take a strength of materials class these days??

RE: Which stress to look ?

In general you'd look at the principal stress range for calculating the fatigue life of a component.

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


White Paper - How ESI is Helping Move New Medical Device Product to Market Quicker & More Cost Effic
Early Supplier Involvement has long been a strategy employed by manufacturers to produce innovative products. Now, it almost seems like a necessity. Because decisions made in the design phase can positively affect product quality and costs, this can help add value to OEM bottom lines. This white paper will discuss many facets of ESI, including why it’s so valuable today, what challenges limit the benefits of ESI, how cost is impacted, 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