Investigation of the probabilistic low cycle fatigue design curves at stress cycling

  • Zilvinas Bazaras Kaunas University of Technology
  • Ramunas Cesnavicius Kaunas University of Technology
  • Jurga Ilgakojyte-Bazariene Kaunas University of Technology
  • Robertas Kersys Kaunas University of Technology
Keywords: probabilistic calculation, low cycle fatigue

Abstract

This paper presents the investigation of probabilistic calculation of low cycle fatigue curves. The experiment of low cycle fatigue was made and cyclic constants were defined. Based on data obtained, design curves of equal fracture probability 15Cr2MoVA and 45 at low cycle stress limited loading were drawn. The design curves were compared with experimental data and the conclusions were made. Low cycle stress limited calculation for anisotropic materials showed a satisfactory agreement with experimental data and can be used in lifetime assessment of various power plant facilities.

DOI: http://dx.doi.org/10.5755/j01.mech.23.2.14358

Published
2017-05-03
Section
MECHANICS OF SOLID BODIES