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ICED 11
Papers

Numerical Approach for Fatigue Initiation Service Life of Mechanical Elements

Numerical Approach for Fatigue Initiation Service Life of Mechanical Elements

Year: 2002

Section: Analysis Technologies

Editor: Marjanovic D.

Author: Šraml M.; Potrč, I.; Flašker, J.

Section: Analysis Technologies

Pages: 1261-1266

Abstract

The numerical model for analysing damage due to contact fatigue of mechanical elements is presented in this paper. Mechanical behaviour of various machine elements depends upon interacting influences of contact elements. Contact fatigue can be divided into the initiation of micro-cracks and crack propagation. The purpose of present study is to elaborate a numerical model for prediction of contact fatigue initiation, based on continuum mechanics. The influence of friction on the contact loading cycles and fatigue initiation should be examined. The results of loading cycles, required for initial fatigue damages to appear Ni and the place yi (on/under contact surface) where contact fatigue damage starts, were presented.

Keywords: mechanical elements, contact fatigue, crack initiation, numerical modelling

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