Predición del límite de fatiga en fretting con contacto esférico
One of the most relevant events controlling fatigue crack propagation under fretting conditions is the steep stress gradient generated in the material by contact loads. This fact suggests that crack growth process may be analysed using methodologies similar to those used for notched components. The...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2003 |
| País: | España |
| Recursos: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/132448 |
| Acesso em linha: | https://hdl.handle.net/11441/132448 |
| Access Level: | acceso abierto |
| Palavra-chave: | Grietas por fatiga Fretting Entallas |
| Resumo: | One of the most relevant events controlling fatigue crack propagation under fretting conditions is the steep stress gradient generated in the material by contact loads. This fact suggests that crack growth process may be analysed using methodologies similar to those used for notched components. The present work assesses the capability of some methods originally developed for notched components to predict the fatigue failure of fretted specimens with spherical contact. The effect of local variation in R-ratio along the crack path is taken into account. The predictions are compared with a number of experimental results obtained using specimens of Al-7075-T6 subjected to fretting fatigue with spherical contact. |
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