Crack Propagation Analysis of Compression Loaded Rolling Elements
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In: Materials, Vol. 14.2021, No. 10, 2656, 19.05.2021.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Crack Propagation Analysis of Compression Loaded Rolling Elements
AU - Dlhý, Pavol
AU - Poduska, Jan
AU - Berer, Michael
AU - Gosch, Anja
AU - Slavik, Ondrej
AU - Nahlik, Lubos
AU - Hutař, Pavel
N1 - Publisher Copyright: © 2021 by the authors.
PY - 2021/5/19
Y1 - 2021/5/19
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85107594262&partnerID=8YFLogxK
U2 - 10.3390/ma14102656
DO - 10.3390/ma14102656
M3 - Article
VL - 14.2021
JO - Materials
JF - Materials
SN - 1996-1944
IS - 10
M1 - 2656
ER -
