Sorochak A. Fracture toughness and residual life of wheelset axles considering structural and mechanical heterogeneity.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0416U000474

Thesis Registration Form

0416U000474.pdf

Applicant for

Specialization

  • 01.02.04 - Механіка деформівного твердого тіла

05-02-2016

Specialized Academic Board

Д 58.052.01

Ternopil National Technical University named after Ivan Puluj

Essay

Object - fracture toughness of railway wheelset axle's material. Purpose - revealing the basic laws of operational factors on fatigue crack growth of the OSL steel and refinement of axle residual life assessment procedure considering structural and mechanical heterogeneity of material. Innovations - interrelation between shear lips height and impact toughness for axle's material was established; basic laws of mechanical properties gradient impact on fracture toughness of the OSL steel were revealed; procedure of residual lifetime assessment of a wheelset axle was improved taking into account the structural heterogeneity of the material. Implemented in The State Territorial and Sectorial Association "Lviv Railway".

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Files

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