A tire break-in procedure has historically been used prior to tire force and moment testing for three reasons: to reduce variability, stabilize the data, and simulate service. For low slip angle force and moment data it is shown that the tire break-in does not achieve these objectives. Break-in is a result of viscoelastic changes and permanent deformation in the tire carcass materials, not a surface roughening or wear effect as has previously been assumed. It is recommended that no break-in be used in low slip angle force and moment testing. This action would eliminate the break-in variability variable and lead to reduced testing variability and more stable data.
The effect of tire breake-in on force and moment properties
Wirkung der herbeigefuehrten Reifenverformung auf Reifenkraefte und Reifenmomente
SAE-Papers ; 1-13
1977
13 Seiten, 19 Bilder, 3 Tabellen, 5 Quellen
Conference paper
English