Crack Propagation Analysis of Compression Loaded Rolling Elements
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 a...
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MDPI AG
2021-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/10/2656 |
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| author | Pavol Dlhý Jan Poduška Michael Berer Anja Gosch Ondrej Slávik Luboš Náhlík Pavel Hutař |
| author_facet | Pavol Dlhý Jan Poduška Michael Berer Anja Gosch Ondrej Slávik Luboš Náhlík Pavel Hutař |
| author_sort | Pavol Dlhý |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T11:17:28Z |
| format | Article |
| id | doaj.art-ca4028d7805f4b9799ddf4ed575390a1 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T11:17:28Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ca4028d7805f4b9799ddf4ed575390a12023-11-21T20:21:50ZengMDPI AGMaterials1996-19442021-05-011410265610.3390/ma14102656Crack Propagation Analysis of Compression Loaded Rolling ElementsPavol Dlhý0Jan Poduška1Michael Berer2Anja Gosch3Ondrej Slávik4Luboš Náhlík5Pavel Hutař6Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech RepublicInstitute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech RepublicPolymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, AustriaMaterial Science and Testing of Polymers, Montanuniversitaet Leoben, Otto Gloeckel-Straße 2, 8700 Leoben, AustriaInstitute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech RepublicInstitute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech RepublicInstitute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech RepublicThe 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.https://www.mdpi.com/1996-1944/14/10/2656fracture mechanicscrack propagationstress intensity factorthermoplastic materialbearing elementfinite element method |
| spellingShingle | Pavol Dlhý Jan Poduška Michael Berer Anja Gosch Ondrej Slávik Luboš Náhlík Pavel Hutař Crack Propagation Analysis of Compression Loaded Rolling Elements Materials fracture mechanics crack propagation stress intensity factor thermoplastic material bearing element finite element method |
| title | Crack Propagation Analysis of Compression Loaded Rolling Elements |
| title_full | Crack Propagation Analysis of Compression Loaded Rolling Elements |
| title_fullStr | Crack Propagation Analysis of Compression Loaded Rolling Elements |
| title_full_unstemmed | Crack Propagation Analysis of Compression Loaded Rolling Elements |
| title_short | Crack Propagation Analysis of Compression Loaded Rolling Elements |
| title_sort | crack propagation analysis of compression loaded rolling elements |
| topic | fracture mechanics crack propagation stress intensity factor thermoplastic material bearing element finite element method |
| url | https://www.mdpi.com/1996-1944/14/10/2656 |
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