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  #15  
Old February 23rd 18, 01:31 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default rubber compounds

Jeff Liebermann wrote:

Rubber follows a hysteresis curve


Aha, interesting!

The energy loss is a function of stress
and strain

Stress is a force acting on a rock per unit
area. ... Stress can cause strain, if it is
sufficient to overcome the strength of the
object that is under stress. Strain is a change
in shape or size resulting from applied forces
(deformation). Rocks only strain when placed
under stress. [1]

(OK, that makes sense except what are the
"rocks" refered to?)

Also, when an elastic material (rubber) is
deformed but recovers, does that count as
strain? Probably yes as otherwise that curve
wouldn't be the one to describe it all?

That curve happens for each/any point on the
wheel for each rotation? Assuming the rider
doesn't runt the bike into a brick wall or
anything...

I have no idea and am too
lazy/busy/burned-out to look it up for you
right now.


Well, don't be stressed and absolutely not
strained by these questions

[1] https://www.youtube.com/watch?v=rRTvl7D9Ugw

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