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DLHÝ, P. PODUŠKA, J. BERER, M. GOSCH, A. SLÁVIK, O. NÁHLÍK, L. HUTAŘ, P.
Originální název
Crack Propagation Analysis of Compression Loaded Rolling Elements
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
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 simulations.
Klíčová slova
fracture mechanics; crack propagation; stress intensity factor; thermoplastic material; bearing element; finite element method
Autoři
DLHÝ, P.; PODUŠKA, J.; BERER, M.; GOSCH, A.; SLÁVIK, O.; NÁHLÍK, L.; HUTAŘ, P.
Vydáno
1. 5. 2021
Nakladatel
MDPI
Místo
BASEL
ISSN
1996-1944
Periodikum
Materials
Ročník
14
Číslo
10
Stát
Švýcarská konfederace
Strany od
2656-1
Strany do
2656-24
Strany počet
24
URL
https://www.mdpi.com/1996-1944/14/10/2656
Plný text v Digitální knihovně
http://hdl.handle.net/11012/202261