×
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

stress allowable values

stress allowable values

stress allowable values

(OP)
Does anyone know where i can get the stress allowable  values  for diferent materials?
I need this value to compare it to the applied strees when this shaft is subjected to a reversed torsional load.
Thank you.

RE: stress allowable values

For data on metals, search the Aircraft Engineering forum for links to where Mil-Handbook-5 (MMPDS) can be downloaded.

RE: stress allowable values

You might try Mechanical Engineering handbooks or a machine design textbook as well.

RE: stress allowable values

For aluminum, use The Aluminum Association's design handbook.  Note that the allowable stress varies depending on the shape of the section, the load and boundary conditions.  If you are looking for Yield Strength, that is easily found and tabulated.  Allowable strength is another animal though!!

RE: stress allowable values

If you're looking at a shaft with reverse torsional load then you're probably referring to one that is spinning. As well as allowable stresses in terms of satisfying a yield criteria, you should also look at satisfying allowable fatigue stress limits, which can be less than those for the yield criteria of a static structure. The allowable fatigue stress (generally for an infinite life) will be factored by the fact that you have a reverse loading and you should also consider the size of the shaft and its surface quality. Presumably the stress you have calculated will also consider any stress concentration features.

corus

RE: stress allowable values

ASME B&PV Code sec IID

if you can find it, the old ANSI/ASME B106.1M-1985 "Design of Transmission Shafting" has charts in the back & lotsa other good stuff

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