Work

Analytical Description of Three-Dimensional Fractal Surface Wear Process Based on Multi-Stage Contact Theory

Year: 2025

Type: article

Abstract: Accurately revealing the sliding wear mechanisms of mechanical surfaces is crucial for enhancing the performance of mechanical surfaces. This study reveals the mechanism of stage transitions in three-dimensional surface wear processes from a microscopic contact perspective. Firstly, according to the fractal theory, a mathematical model for the critical area scale controlling debris particle formation is established. Secondly, incorporating the contact area scale, a mathematical expression for the wear coefficient of surfaces, is proposed based on the multi-stage contact theory. Finally, the influences of fractal parameters on critical contact load, wear rate, and wear coefficient are systematically examined. The experimental findings substantiate that the proposed wear model exhibits an explicit deterministic formulation and demonstrates high predictive accuracy for the wear rate.

Source: Fractal and Fractional

DOI: 10.3390/fractalfract9070463

Authors: Wang Zhang, Ling Li, Yang Liu, Jingjing Wang, Yao Li, Guozhang Chen

Institution: Xi'an University of Architecture and Technology

Language: English

Topic: Mechanical stress and fatigue analysis

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,258

Funders: National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities, Key Research and Development Projects of Shaanxi Province