Open AccessTHE CALCULATION OF STRESS INTENSITY FACTOR STEEL OF RAILWAY WHEELS
Author(s) -
І. О. Вакуленко,
S. V. Proydak,
Hangardas Askerov
Publication year - 2020
Publication title -
zeszyty naukowe - politechnika śląska. transport/scientific journal of silesian university of technology. series transport
Language(s) - English
Resource type - Journals
eISSN - 2450-1549
pISSN - 0209-3324
DOI - 10.20858/sjsutst.2020.109.17
Subject(s) - materials science , intensity (physics) , ultimate tensile strength , elongation , isostructural , stress intensity factor , carbon steel , stress (linguistics) , grain size , composite material , correlation coefficient , structural engineering , metallurgy , mathematics , crystallography , statistics , physics , chemistry , engineering , fracture mechanics , corrosion , linguistics , philosophy , quantum mechanics , crystal structure
From an analysis of the dependence complex of carbon steel properties on structural parameters, it was found that for an isostructural state, the influence of austenite grain size on impact strength exceeds the dependence on carbon content. As a result of explaining correlation relationships between individual mechanical characteristics, to evaluate critical stress intensity factor, a relationship is proposed based on the use of impact strength. The proportionality coefficient in proposed dependence is determined by ratio of elongation to narrowing at tensile test.