A numerical and effective method for the contact stress calculation of elliptical partial slip

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• 作者：Xiaoyong Li (1) (2)
  Liang Liang (1)
  Shijing Wu (2)
  
• 关键词：Elliptical contact ; Partial slip ; Numerical method ; Von Mises stress
• 刊名：Journal of Mechanical Science and Technology
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：29
• 期：2
• 页码：517-525
• 全文大小：1,418 KB
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• 作者单位：Xiaoyong Li (1) (2)
  Liang Liang (1)
  Shijing Wu (2)
  
  1. School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China
  2. Key Laboratory of Hubei Province for Water, Jet Theory and New Technology, Wuhan University, Wuhan, 430072, China
  
• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Structural Mechanics
  Control Engineering
  Industrial and Production Engineering
  
• 出版者：The Korean Society of Mechanical Engineers
• ISSN：1976-3824

文摘

A general elliptical Hertzian contact, such as a ball rolling in a non-conforming groove or two non-orthogonal cylinders, is a universal phenomenon in engineering. A partial elliptical contact is formed by contact bodies under a normal force and a transverse force that is insufficient to cause complete sliding. A computational model based on the semi-analytical method is established to calculate the von Mises stress distribution. Furthermore, a parametric study on factors influencing the location of the maximum von Mises stress point, such as the coefficient of friction and stick zone ratio, is conducted. Results show that the location of the maximum von Mises stress point depends on the coefficient of friction f and stick zone ratio c. The von Mises stress increases significantly with the increasing coefficient of friction f. Moreover, the maximum von Mises stress point tends to occur at a subsurface when the stick ratio c increases.