×
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

Incorrect Neutral Axis For Shaft Under Pure Torsion

Incorrect Neutral Axis For Shaft Under Pure Torsion

Incorrect Neutral Axis For Shaft Under Pure Torsion

(OP)
Hi!

Whenever I use torsional loads for BEAM188 elements the angle of twist and shear stresses are consistent with theoretical results. However, the neutral axis is not. In the picture attached the results from a shaft in pure torsion can be seen. Here the neutral axis (marked with a black line) is not consistent with theory. Theory says that the neutral axis for pure torsion should be the longitudinal axis, i.e., the x-axis, which is not the case in ANSYS. What is the reason for this?

Attached is also the input file used for the pictures.

Thanks in advance

Attached Files:

http://files.engineering.com/getfile.aspx?folder=1cd43457-4c4f-47d5-9715-74aa3b446d71&file=1D887.PNG

http://files.engineering.com/getfile.aspx?folder=19ba0b59-ee02-496c-b2fd-468fb92eafb7&file=0-PureTorsion-CircularCS.txt

 

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