Parking Camper On New Driveway Question
Hi All, I just had an asphalt driveway poured at my house, its soft so Im waiting to drive on it for a week or so. I have parked my camper on the old driveway for 12 years on 3x8 blocks but the contra...
Forum Discussion
HMS Beagle wrote:CapriRacer wrote:
Guys,
The inflation pressure in the tire is NOT equal to the pressure in the footprint.
Here's the wikipedia article on it:
Wikipedia: Contact Patch
However for low pressure tires (passenger car tires - about 30 psi), it's a good approximation, but for high pressure tires (100 psi), it is not.
The Wiki article summary mischaracterizes those papers. They are talking about second and third order effects due to tire carcass stiffness and rolling dynamics. In both papers referenced by the article, the data shows that linear and proportional is a pretty good approximation (errors approach 10 percent only at extremes), unless you are interested in fine detail not relevant to your driveway asphalt. For example the paper dealing with high pressure truck tires states explicitly "Average contact pressures at these same loading conditions are about equal to inflation pressure..."
Here, try this one:
Fact or Fiction: Tire Contact Patch Size
