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

Tire slip angle diagram: wet vs. dry

Tire slip angle diagram: wet vs. dry

Tire slip angle diagram: wet vs. dry

Hi all,

Does someone have a link to a tire slip angle diagram, so I can see how it changes from dry to wet?
I want to understand why tires behave the way they do in the wet (e.g., cornering force past the peak at very high slip angles, is a larger % down from the peak, in the wet vs. dry, or the dropoff is more abrupt).


RE: Tire slip angle diagram: wet vs. dry

SAE published a graph showing the general nature of a tire Fy responce at a fixed load vs. slip angle. Water softens the initial stiffness, drives down the peak and moves it to a higher slip angle.

On ice, there really is no peak, just an early max and a flatline after that.

Gravel is another animal. Its low stiffness but force continues to build. Just imagine the tire on ball bearings. As you turn it more, you plow the ball bearings out of the way and utilize more of what's beneath them.

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


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