Evaluation of the Service Life of the Frames of Sections of Boom Field Sprayers

We proposed a model for the numerical evaluation of the service life of the load-bearing frames of sections of boom field sprayers made of St.3 steel. The service life of boom elements is represented as the sum of periods of initiation and subcritical growth of fatigue cracks determined according to...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2019-11, Vol.55 (3), p.374-380
Main Authors: Rybak, Т. І., Babii, А. V., Bortnyk, І. М., Ts’on, H. B., Konovalenko, S. I.
Format: Article
Language:English
Subjects:
Analysis
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crack initiation
Crack propagation
Fatigue
Fatigue cracks
Fatigue failure
Fatigue testing machines
Fracture mechanics
Materials
Materials Science
Product design
Service life assessment
Solid Mechanics
Structural Materials
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Summary:We proposed a model for the numerical evaluation of the service life of the load-bearing frames of sections of boom field sprayers made of St.3 steel. The service life of boom elements is represented as the sum of periods of initiation and subcritical growth of fatigue cracks determined according to the Wöhler diagram and kinetic diagram of fatigue crack growth. By using this model, we compute the service life of a boom for the maximum amplitudes of cyclic bending of its weakest elements. It is shown that, in this case, the service life is more than twice lower than the normative values.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-019-00312-0