3 ms·
Honest question how does shear force proportional to torque not factor in? Coefficient of friction is shear over normal. Mechanical properties are a function o
by ok_computer 3y ago
Honest question how does shear force proportional to torque not factor in? Coefficient of friction is shear over normal.
Mechanical properties are a function of temperature and quick startups assuredly contribute to wear. An extreme example is drag racing. Cars are highway driving in steady state cruising for more miles and time but in the US around town driving has stop lights.
- djhedges 3y agoEven at steady state cruising the the tires are flexing and stretching with each revolution. Tires are round but a driveway is flat. If you look at the contact patch of the tire it flattens a bit to confirm to the driveway's shape. Now visualize with each revolution that flatten part of the tire is cycling around the wheel. At a microscopic level there's a lot edges in the road surface that we don't fully appreciate which also contributes to tire wear. http://insideracingtechnology.com/tirebkexerpt1.htm http://insideracingtechnology.com/tirebkexerpt1.htm