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Crack Propagation Analysis of Compression Loaded Rolling Elements
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SYSNO ASEP 0542759 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Crack Propagation Analysis of Compression Loaded Rolling Elements Author(s) Dlhý, Pavol (UFM-A) ORCID
Poduška, Jan (UFM-A) ORCID
Berer, M. (AT)
Gosch, A. (AT)
Slávik, Ondrej (UFM-A) ORCID
Náhlík, Luboš (UFM-A) RID, ORCID
Hutař, Pavel (UFM-A) RID, ORCIDNumber of authors 7 Source Title Materials. - : MDPI
Roč. 14, č. 10 (2021), s. 2656Number of pages 24 s. Language eng - English Country CH - Switzerland Keywords fracture mechanics ; crack propagation ; stress intensity factor ; thermoplastic material Subject RIV JL - Materials Fatigue, Friction Mechanics OECD category Audio engineering, reliability analysis Method of publishing Open access Institutional support UFM-A - RVO:68081723 UT WOS 000662546500001 EID SCOPUS 85107594262 DOI 10.3390/ma14102656 Annotation The problem of crack propagation from internal defects in thermoplastic cylindrical bearing
elements is addressed in this paper. The crack propagation in these elements takes place under
mixed-mode conditions—i.e., all three possible loading modes (tensile opening mode I and shear
opening modes II and III) of the crack are combined together. Moreover, their mutual relation changes
during the rotation of the element. The dependency of the stress intensity factors on the crack length
was described by general parametric equations. The model was then modified by adding a void
to simulate the presence of a manufacturing defect. It was found that the influence of the void on
the stress intensity factor values is quite high, but it fades with crack propagating further from the
void. The effect of the friction between the crack faces was find negligible on stress intensity factor
values. The results presented in this paper can be directly used for the calculation of bearing elements
lifetime without complicated finite element simulationsWorkplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2022 Electronic address https://www.mdpi.com/1996-1944/14/10/2656
Number of the records: 1