Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Question for Weeksy.

[RickyX]

Originally posted by DJ Tera
But isnt force also related to area??


Force = pressure/area

Therefore pressure = force X area

or something

Its been too many party night since my A-levels 7 years ago

[Edited on 9-6-2004 by DJ Tera]

DJ,
From the above, I assume you got a "D" in A Level physics
You are 100%......wrong!

Pressure (stress) = force/area
Do not get confused with the pressure on the brake pad backing plate and the area of the friction material.
Take the following:
1. Brake Pad "A": Backing plate area = "1", friction material area = "1"
2. Brake Pad "A": Backing plate area = "1", friction material area = "0.5"

Force applied due to hydraulic pressure will be the same for "1" and "2".
Friction force generated between 1 and 2 will therefore be the same.
However, STRESS on friction material "2" will be 2 x stress on friction material "1"...therefore the heat generated will be more and the wear rate will be worse.........
Enough.