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Old 08-09-2015, 07:46 PM   #10
CSG Mike
 
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Quote:
Originally Posted by PST View Post
As far as what kind of input I'm looking for, I would love to hear someone else's thoughts on that plateau in temps at the last big corner, more specifically my theory relating to sliding vs. static friction. I've got some books on the way to hopefully provide some more insight on that behavior.

Regarding the hysteresis of rubber, my understanding is it's all extremely proprietary and compound specific. I think the only way for us to determine the "heat life" of these tires is anecdotal.



Sessions range from 8-15 laps, max 25 minutes. When I get into the shop in a few hours, I'll post up some more detailed information about the session duration. I don't have pyrometer data for the last half dozen sessions.

Basically, I'm aware the tires are heat cycled out, but I'm trying to narrow in on the best way to confirm that with the IR data. If that plateau at the end is what I think it is, that's a clear sign that we reached the tractive limit of the tires much earlier than before.
Typically tire temps will drop as they lose friction; while sliding generates friction, it's not as much as deformation under grip/light slip angle.
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