Effect of the tire – Pavement contact at the surface layer when the tire is tilted in bend

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2021-10-25 DOI:10.1016/j.conbuildmat.2021.124765

Y. Oubahdou , E-R. Wallace , P. Reynaud , B. Picoux , J. Dopeux , C. Petit , D. Nélias

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引用次数: 8

Abstract

Tire-pavement interaction is a rolling contact problem that depends on tire and pavement factors, such as vehicle speed and weight, material and type of tire, tire pressure inflation, camber and texture of the surface layer. In this paper, the problem of tire-pavement contact is studied using a realistic description in normal section and bend. The study focuses on the shape of the contact patch and the stress distribution at the tire-pavement interface and the surface shear stresses rather than internal stresses in the structure of the pavement. The numerical approach introduced requires precise tire geometry (estimated by a photogrammetry method) and an equivalent Young's modulus (function of the inflation pressure resulting from the press load tests). Vertical contact stress at the tire-pavement interface predicted by a Semi-Analytical model were compared to experimental measurements with a press system under different loads and angles of inclination. Finally, we discuss the effect of the tire inclination on the calculated shear stresses (origins of damage in turns). The model shows that the increase of the angle of inclination in a turn has a direct influence on the distribution of the tire-pavement contact stresses and the shear stresses. These results will provide indications for the evaluation of the performance of the surface layer with respect to rutting and downward cracking.

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轮胎倾斜弯道时，表层轮胎与路面接触的影响

轮胎-路面相互作用是一个滚动接触问题，它取决于轮胎和路面的因素，如车辆的速度和重量，轮胎的材料和类型，轮胎的充气压力，曲面和表层的纹理。本文采用现实描述法向截面和弯道的方法研究了轮胎与路面的接触问题。研究的重点是接触斑的形状和轮胎-路面界面的应力分布，以及路面结构中的表面剪应力而不是内应力。所介绍的数值方法需要精确的轮胎几何形状(通过摄影测量方法估计)和等效的杨氏模量(压载试验产生的充气压力的函数)。将半解析模型预测的轮胎-路面界面垂直接触应力与不同载荷和不同倾斜角下压力系统的实验测量结果进行了比较。最后，我们讨论了轮胎倾斜度对计算剪切应力(依次损伤的起源)的影响。该模型表明，转弯时倾斜角的增大直接影响轮胎-路面接触应力和剪应力的分布。这些结果将为评估表面层在车辙和向下开裂方面的性能提供指示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.