Orientation of propagating crack paths emanating from fretting-fatigue contact problems
In this work, the orientation and propagation of cracks in fretting fatigue problems is analyzed numerically using the finite element method (FEM) and the extended finite element method (X-FEM). The analysis is performed by means of a 2D model of a complete-contact fretting problem, consisting of...
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Gruppo Italiano Frattura
2016-01-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_33.pdf |
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| author | Eugenio Giner José Díaz-Álvarez Miguel Marco Mª Henar Miguélez |
| author_facet | Eugenio Giner José Díaz-Álvarez Miguel Marco Mª Henar Miguélez |
| author_sort | Eugenio Giner |
| collection | DOAJ |
| description | In this work, the orientation and propagation of cracks in fretting fatigue problems is analyzed
numerically using the finite element method (FEM) and the extended finite element method (X-FEM). The
analysis is performed by means of a 2D model of a complete-contact fretting problem, consisting of two square
indenters pressed onto a specimen subjected to cyclic fatigue. For the simulation, we allow for crack face
contact in the implementation during the corresponding parts of the fatigue cycle. The problem is highly nonlinear
and non-proportional and we make use of the so-called minimum shear stress range orientation criterion,
min(), proposed by the authors in previous works. This criterion is introduced to predict the crack path in
each step of the crack growth simulation. The objective of the work is to detect which is the relevant parameter
affecting the crack path orientation. A parametric study of some a priori relevant magnitudes is carried out, such
as normal load on the indenters, bulk load on the specimen, stress ratio and relative stiffness of the indenter and
specimen materials. Contrary to previous expectations, it is shown that the relative magnitude of the applied
loads has no significant effect. However, it is found that the stiffness of the indenter material with respect to the
specimen material has the greatest effect. A simple explanation of this behavior is also provided. |
| format | Article |
| id | doaj-art-920f096bce6f43fe9c6d21f283c9c96d |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-920f096bce6f43fe9c6d21f283c9c96d2025-01-02T20:54:59ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-01-01103528529410.3221/IGF-ESIS.35.33Orientation of propagating crack paths emanating from fretting-fatigue contact problemsEugenio Giner0José Díaz-Álvarez1Miguel Marco2Mª Henar Miguélez3Universitat Politècnica de València,SpainUniversidad Carlos III de Madrid,SpainUniversidad Carlos III de Madrid,SpainUniversidad Carlos III de Madrid,SpainIn this work, the orientation and propagation of cracks in fretting fatigue problems is analyzed numerically using the finite element method (FEM) and the extended finite element method (X-FEM). The analysis is performed by means of a 2D model of a complete-contact fretting problem, consisting of two square indenters pressed onto a specimen subjected to cyclic fatigue. For the simulation, we allow for crack face contact in the implementation during the corresponding parts of the fatigue cycle. The problem is highly nonlinear and non-proportional and we make use of the so-called minimum shear stress range orientation criterion, min(), proposed by the authors in previous works. This criterion is introduced to predict the crack path in each step of the crack growth simulation. The objective of the work is to detect which is the relevant parameter affecting the crack path orientation. A parametric study of some a priori relevant magnitudes is carried out, such as normal load on the indenters, bulk load on the specimen, stress ratio and relative stiffness of the indenter and specimen materials. Contrary to previous expectations, it is shown that the relative magnitude of the applied loads has no significant effect. However, it is found that the stiffness of the indenter material with respect to the specimen material has the greatest effect. A simple explanation of this behavior is also provided.http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_33.pdfCrack path orientationFretting-fatigueComplete contactNonproportional loading |
| spellingShingle | Eugenio Giner José Díaz-Álvarez Miguel Marco Mª Henar Miguélez Orientation of propagating crack paths emanating from fretting-fatigue contact problems Fracture and Structural Integrity Crack path orientation Fretting-fatigue Complete contact Nonproportional loading |
| title | Orientation of propagating crack paths emanating from fretting-fatigue contact problems |
| title_full | Orientation of propagating crack paths emanating from fretting-fatigue contact problems |
| title_fullStr | Orientation of propagating crack paths emanating from fretting-fatigue contact problems |
| title_full_unstemmed | Orientation of propagating crack paths emanating from fretting-fatigue contact problems |
| title_short | Orientation of propagating crack paths emanating from fretting-fatigue contact problems |
| title_sort | orientation of propagating crack paths emanating from fretting fatigue contact problems |
| topic | Crack path orientation Fretting-fatigue Complete contact Nonproportional loading |
| url | http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_33.pdf |
| work_keys_str_mv | AT eugenioginer orientationofpropagatingcrackpathsemanatingfromfrettingfatiguecontactproblems AT josediazalvarez orientationofpropagatingcrackpathsemanatingfromfrettingfatiguecontactproblems AT miguelmarco orientationofpropagatingcrackpathsemanatingfromfrettingfatiguecontactproblems AT mahenarmiguelez orientationofpropagatingcrackpathsemanatingfromfrettingfatiguecontactproblems |