The influence of glass beads on the mechanical properties of road marking materials

Abstract

The visibility of road markings has a significant impact on the safety and reliability of intelligent driving. To improve the mechanical properties of road marking materials, the influence of glass beads in road markings on the mechanical properties of road marking materials was studied through experiments and numerical simulations. It can be observed that the addition of glass beads reduces the mechanical properties of road marking materials. Using the established finite element microscopic model, it was found that the presence of glass beads alters the transmission of stress inside road markings, and stress concentration is extremely easy to occur around the glass beads, especially between two glass beads in close proximity. Cracks are easily produced in the stress concentration area, which reduces the mechanical properties of the road marking material. Through the establishment of molecular dynamics microscopic modeling, it can be found that the smooth surface of the glass beads is difficult to combine with the resin and other base materials, resulting in a serious decline in the mechanical properties of the material at the interface. This study summarizes the overall effect of glass beads on the mechanical properties of road marking materials, points out the importance of improving interfacial bonding and optimizing stress transfer paths, and provides a design basis for the future development of high-performance road marking materials.

Keywords

• Road marking
• Glass beads
• Mechanical properties
• Experimental
• Numerical simulation