Contact US

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

derating temperature according to DNV OS F101

derating temperature according to DNV OS F101

derating temperature according to DNV OS F101

Hello every body, I wonder why the DNV gave us only informations about the derating value for yield stress fy,temp (Fig 5.1) and not for tnsile stress fu,temp knowing that we have to use both of them. Is there any way to determine fu,temp according to DNV ?
Thank you guys :)

RE: derating temperature according to DNV OS F101

There is a guidance note in section 5. If no de-rating exists for ultimate strength, then the drop for the yield can be used conservatively.

Failing that there are papers out there documenting for specific applications, but you will have to search for these.


RE: derating temperature according to DNV OS F101

Thank you ST95,
You're talking about the guidance note that gave us the fiugere 5-1 right?
but that figure only gave us the derating factor for yield stress (fy,temp ) and not the derating factor for tensile stress (fu,temp)
I mean should I look some where for a similar information ? is that what u ment by saying that I have to search for that ?
Thanks again

RE: derating temperature according to DNV OS F101

The graph on DNV-OS-F101 Section 5 C304 is the temperature derating for yield stress. The guidance note suggests you can use this graph for the ultimate stress ALSO, that is if you cannnot find derating information for the ultimate stress. Taking the former approach would be a conservative, i.e. assuming the ultimate stress is equal to the yield stress.

Hope that helps.


RE: derating temperature according to DNV OS F101

Thank you Sadik, that was helpful indeed :)

Best regards

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


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