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Huber-Mises-Hencky Equivalent Stress: A Surface Failure Indicator

[+] Author Affiliations
Luminita Irimescu, Emanuel Diaconescu

University of Suceava, Suceava, Romania

Yves Berthier

INSA de Lyon, Villeurbanne, France

Paper No. WTC2005-63665, pp. 115-116; 2 pages
doi:10.1115/WTC2005-63665
From:
  • World Tribology Congress III
  • World Tribology Congress III, Volume 1
  • Washington, D.C., USA, September 12–16, 2005
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4201-0 | eISBN: 0-7918-3767-X
  • Copyright © 2005 by ASME

abstract

The microslip phenomenon takes place in both rolling and sliding contacts. In the latter case it occurs in fretting, when the main cause of failure is surface degradation. Both cases are experimentally investigated in order to visualise microslip initiation. The position of the first obtained microslip marks is in good agreement with positions of maximum Huber-Mises-Hencky stress. These results associate the micro-slip initiation with contact stress field and proves the ability of Huber-Mises-Hencky stress to assess the occurrence of failure at the interface of an elastic contact in sliding or rolling motion.

Copyright © 2005 by ASME
Topics: Stress , Failure

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