A UNIVERSAL ELASTIC MODEL FOR A COATED SPHERE IN CONTACT WITH A RIGID FLAT

被引：0

作者：

Goltsberg, Roman ^{[1
]}

Etsion, Izhak ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Mech Engn, IL-32000 Haifa, Israel

来源：

M2D2015: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN | 2015年

关键词：

Contact mechanics; Coatings; Contact area; Maximum Von Mises stress;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A finite element analysis was used in order to investigate the elastic contact of a coated sphere compressed by a rigid flat. A proper normalization of the dimensional contact area and maximum stresses in the coating and in the substrate was used to obtain a universal model of the elastic contact. This model provides relation between the contact area and the interference for a wide range of mechanical and geometrical properties, which is different from the classical Hertz relation for homogeneous sphere compressed by a rigid flat. This model also provides a new approach of defining the limit of elasticity in the coated system, based on the calculation of the maximum von Misses stresses in the substrate and the coating from their mechanical and geometrical properties as well as the interference.

引用

页码：2273 / 2274

页数：2