On the Evaluation of Multilayered Dual Tire-Pavement Contact Under Diverse Driving Conditions

This chapter introduces an application of the semi-analytical model (SAM) to tire-pavement tractive rolling contact evaluation. A multilayered linear-elastic approach was selected to accurately describe the road and tire behaviour. Numerical simulations were carried out considering the actual geometry of dual tires reconstructed by laser scanning. Principal tensile strains were determined under various loading scenarios: pure rolling, acceleration, braking, and cornering. Under tractive rolling, tensile strains are not symmetrically distributed on the pavement surface and some slid should be observed on the tire trailing edges. Tensile strains are maximized during a turning manoeuvre as a centrifugal force is applied and the axle load is not balanced. For tractive rolling cases, tensile strains at the surface of a multilayered pavement are consistent with SAM calculations considering the road as an infinite and homogenous half-space. Nevertheless, the discrepancy between the numerical results is not negligible under pure rolling.