Analysis of Influence Choice Fatigue Failure Criteria to Assess Integrity of Wagon Structure Parts

Abstract

One of the most common phenomena in engineering practice that causes failure is fatigue. Carrying parts of wagon structure exposed to high-cycle fatigue. This paper presents an analysis of the load on the bottom part of the wagon underframe structure and fatigue failure analysis of the most critical zones based on S-N approach. For the analysis of the fatigue failure phenomenon Goodman's criterion and fatigue criterion based on the equivalent stress range were used. Integrity assessment of wagon structure parts was determined according to calculation of fatigue safety factor. Analysis of influence choice fatigue failure criteria to assess integrity of wagon structure parts was done.