×
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

Variable Friction Coefficient

Variable Friction Coefficient

Variable Friction Coefficient

(OP)
I have a situation where the friction coefficient increases linearly until it reaches its final, steady-state value.
There is also difference in the friction coefficient values with different temperatures.
Is there a way to input coefficient values like that? (i.e. essentially changing with contact force). I can see how to enter temperature-dependent coefficients in the penalty tab of tangential behaviour but not load-dependent.

RE: Variable Friction Coefficient

In the penalty tab of tangential behavior see 'use contact-pressure-dependent data. I have never used both dependencies but would assume that Abaqus makes a linear response surface based on the inputs provided. The user manual likely goes into more depth.

In the Abaqus/CAE manual '15.14.1 Defining a contact interaction property' may be a good starting point.

I hope this helps.

Rob Stupplebeen
www.optimaldevice.com
https://sites.google.com/site/robertkstupplebeen/

RE: Variable Friction Coefficient

(OP)
Thank you Rob!

RE: Variable Friction Coefficient

If the dependence get very complicated you should be able to use the FRIC user subroutine as well, though Rob's suggestion is definitely the preferred way.

Han primo incensus

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