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Role of exponential and power law formulations in contact stress

Monfared, V ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.17485/ijst/2014/v7i1/46673
  3. Abstract:
  4. Analyzing contact stress in rails and wheels are very important in mechanical and railway engineering. In this paper, new formulations of the contact stress are presented for two rolling bodies by exponential and power law forms semi-analytically. Innovative elastic wheel-rail contact models and FE Modeling are proposed. The present model assumes the collection of rail and wheel as elastic deformable bodies and needs numerical and novel analytical solutions. Results of this work are close to the Hertz Stress, previous published work and FEM results, in which good agreements are found among the results. So, we can rely on this method and their results. With this approach, suitable results will be achieved. Important novelty of this research is presentation of new analytical formulations in the Power Law (PL) and Exponential Forms (EF) for obtaining contact stress in the rolling bodies
  5. Keywords:
  6. Contact stress ; Exponential and power law forms ; Hertz's elliptic rolling bodies
  7. Source: Indian Journal of Science and Technology ; Vol. 7, issue. 1 , 2014 , pp. 7-13 ; ISSN: 09746846
  8. URL: http://www.indjst.org/index.php/indjst/article/view/46673