Local strain energy density approach to assess the fatigue strength of sharp and blunt V-notches in cast steel

M. Schuscha, M. Leitner, M. Stoschka, G. Meneghetti

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

In this work, the strain energy density approach (SED) is utilized to assess the fatigue strength of circumferential V-notched specimens covering axial loading and rotating bending. Subsequent calculations of the linear-elastic SED lead to a statistical proven accordance among about one-hundred experimental tests, thereby introducing extended H-function values for increased Rc to ρ values as well. Furthermore, low-cycle fatigue tests are conducted and utilized in an extensive elasto-plastic SED assessment. Thus, the scatter index of the evaluated equivalent strain energy density is reduced towards a ratio of about two. Concluding, the finite-volume-based energy approach provides an engineering-applicable fatigue assessment tool.
Originalspracheenglisch
Aufsatznummer105334
FachzeitschriftInternational Journal of Fatigue
Jahrgang132
DOIs
PublikationsstatusVeröffentlicht - 1 Mär 2020
Extern publiziertJa

Schlagwörter

  • Cast steel
  • Elastic strain energy density
  • NSIF
  • Plastic strain energy density
  • V-Notch

ASJC Scopus subject areas

  • !!Mechanics of Materials
  • !!Mechanical Engineering
  • !!Materials Science(all)
  • !!Industrial and Manufacturing Engineering
  • !!Modelling and Simulation

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