Estimation of the Growth of Nonthrough Cracks in the High-Pressure Cylinder of a Long-Stroke Compressor

An improved criterion for use in predicting the growth of nonthrough fatigue cracks as a function of the degree of the stress state of structural elements is proposed. The stress state of samples made of steel 20 and of the aluminum alloy AK6 is investigated. It is established that biaxial loading i...

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Veröffentlicht in:	Chemical and petroleum engineering 2017, Vol.52 (9-10), p.614-619
Hauptverfasser:	Aistov, I. P., Vansovich, K. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloying elements Alloys Aluminum base alloys Axial stress Biaxial loads Chemistry Chemistry and Materials Science Fatigue (Materials) Fatigue cracks Fatigue failure Geotechnical Engineering & Applied Earth Sciences Industrial Chemistry/Chemical Engineering Industrial Pollution Prevention Metal fatigue Mineral Resources Structural members
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Zusammenfassung:	An improved criterion for use in predicting the growth of nonthrough fatigue cracks as a function of the degree of the stress state of structural elements is proposed. The stress state of samples made of steel 20 and of the aluminum alloy AK6 is investigated. It is established that biaxial loading influences the rate of growth of a fatigue crack and its relationship to the coefficient of triaxiality of the stress state, which may be calculated in a neighborhood of the apex of the crack.
ISSN:	0009-2355 1573-8329
DOI:	10.1007/s10556-017-0241-x