Two-Dimensional Adhesive Contact Problem for Graded Coating Based on a New Multi-Layer Model

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Li, Peixing^1 ; Liu, Tiejun^1

Department of Mechanics, School of Science, Inner Mongolia University of Technology, Hohhot

010051, China^1

关键词: Adhesive contact;    Cauchy singular integral equations;    Cylindrical indenters;    Fourier integral transform techniques;    Functionally graded material coatings;    Indentation depth;    Multilayer models;    Numerical calculation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012043/pdf
DOI  :  10.1088/1757-899X/301/1/012043

来源: IOP

【 摘 要 】

In this paper, the contact problem with adhesion for graded coating indented by a cylindrical indenter is considered. A multi-layered model is developed to model functionally graded material (FGM) coating with arbitrarily varying elastic modulus. By using the transfer matrix method and Fourier integral transform technique, the problem is reduced to a Cauchy singular integral equation. The numerical calculation is conducted to achieve the effect of the gradient index of the FGM coating and the adhesive parameter on the pull-off force and the relation between the normal load and the maximum indentation depth. The results show that the gradient index of coating can effectively change the behavior of adhesive contact.