Distribution of Mechanical Stresses in a Tire Subjected to Pressing on the Wheel Center of an Electric Locomotive

Skal’s’kyi, V. R.; Rudavs’kyi, D. V.; Yarema, R. Ya.; Kanyuk, Yu. І.

doi:10.1007/s11003-018-0116-0

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The integrity of the mechanical elements of the railway transport, ensuring their reliable and longlasting work, as well as reliable diagnostics of their residual service life, are important issues in today's engineering practice [1,2]. At the same time, railway wheels are the most determinative parts of the rolling stock, because the reliability of transportation and traffic safety depend directly of their condition.…”

Section: Introductionmentioning

confidence: 99%

The diagnostics and ways heat treatment optimization of a railway wheels steel

Vira¹,

Kulyk²,

Chepil³

et al. 2019

Diagnostyka

View full text Add to dashboard Cite

A high resolution sensor of linear displacements has been elaborated for diagnosing the size of the crack tip opening in standard test specimens. Based on the data measured during fatigue crack growth resistance tests of a wheel steel heat treated after various modes, calculations of the strain and energy parameters of local fracture were performed for the corresponding variants of treatment, and fatigue crack growth rate diagrams were constructed using different approaches of fatigue fracture mechanics. It was established that the diagrams obtained using the strain and energy approaches are more sensitive to material microstructure and its mechanical properties than the traditional diagrams obtained using the stress approach. Based on the parameters of the fatigue crack growth resistance estimated using the strain and energy approaches, the effective diagnostics and the best heat treatment mode for the wheel steel was developed. It comprises the stages of isothermal quenching and tempering at a temperature of 500 °С, providing the highest fatigue fracture toughness of the steel.

show abstract

Section: Introductionmentioning

confidence: 99%