Approach of Pavement Surface Layer Degradation Caused by Tire Contact Using Semi-Analytical Model

Materials

Daniel Nelias¹  EdemYawo Manyo²  Philippe Reynaud²  Fatima Allou²  Rémi Tautou²  Benoit Picoux²  Christophe Petit² 

[1] INSA Lyon, University of Lyon, LAMCOS, CNRS UMR5259, Avenue J Capelle, F-69100 Villeurbanne, France;Laboratoire GC2D, EA 3178, University of Limoges, Bd J. Derche, F-19300 Egletons, France;

关键词: tire-pavement contact;    rolling contact;    rubbing;    semi-analytical method;    top-down cracking;    kalker’s theory;   

DOI  :  10.3390/ma14092117

来源: DOAJ

【 摘 要 】

New methods of degradations on the pavement’s surface, such as top-down cracking and delamination, caused by the repeated passage of heavy vehicles led to questions about the impact of the contact between the tire and the pavement. In fact, to increase the service life of the structures, future road design methods must have a precise knowledge of the consequences of the contact parameters on the state of stress and deformation in the pavement. In this paper, tractive rolling contact under the effect of friction is modeled by Kalker’s theory using a semi-analytical method (SAM). A tire profile is performed thanks to a digitization by fringes or a photogrammetry technique. The effect of rolling on the main surface extension deformations is then highlighted to study top cracking. At the end of the SAM calculation, contact areas are closed to 200 μdef, exceeding the allowable micro-deformation limit for the initiation of cracking. In addition, results on the main strain directions also give information on the direction of cracking (initiation of longitudinal or transverse cracks). The cracking then becomes evident, leading to a reduced service life.

【 授权许可】

Unknown