Fatigue notch sensitivity as a function of the notch to grain size relationship
This work presents experimental results showing the mode I fatigue behaviour of holed components as a function of the hole to grain size relationship. A wide range of notch size to grain size ratios are used, including cases where the notch size is on the order of, or even smaller, than the grain si...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2014-06-01
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| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20141204016 |
| _version_ | 1828925376742555648 |
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| author | Lorenzino Pablo Navarro Alfredo |
| author_facet | Lorenzino Pablo Navarro Alfredo |
| author_sort | Lorenzino Pablo |
| collection | DOAJ |
| description | This work presents experimental results showing the mode I fatigue behaviour of holed components as a function of the hole to grain size relationship. A wide range of notch size to grain size ratios are used, including cases where the notch size is on the order of, or even smaller, than the grain size. Making through-holes in the order of the grain size is very difficult in practice. So the technique used in this paper is to manufacture materials with very large grain size, on the order of a millimetre or even centimetre, then usual machines and tools can be used for making the notches. After the specimens are obtained and tested, the notch sensitivity is evaluated and it is shown how the notch sensitivity index of any material must always be defined in terms of its microstructure. It was found that for the same specimen geometry and loading conditions and identical stress concentrators, the influence of the stress concentrator is directly dependent on the relationship between their dimension and the grain size. |
| first_indexed | 2024-12-13T23:14:12Z |
| format | Article |
| id | doaj.art-6bc77a801edf4dbc9204b0d2d2493251 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-13T23:14:12Z |
| publishDate | 2014-06-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-6bc77a801edf4dbc9204b0d2d24932512022-12-21T23:27:59ZengEDP SciencesMATEC Web of Conferences2261-236X2014-06-01120401610.1051/matecconf/20141204016matecconf_jip14_04016Fatigue notch sensitivity as a function of the notch to grain size relationshipLorenzino Pablo0Navarro Alfredo1Mateis, INSA de LyonDepartment of Mechanical Engineering, University of SevilleThis work presents experimental results showing the mode I fatigue behaviour of holed components as a function of the hole to grain size relationship. A wide range of notch size to grain size ratios are used, including cases where the notch size is on the order of, or even smaller, than the grain size. Making through-holes in the order of the grain size is very difficult in practice. So the technique used in this paper is to manufacture materials with very large grain size, on the order of a millimetre or even centimetre, then usual machines and tools can be used for making the notches. After the specimens are obtained and tested, the notch sensitivity is evaluated and it is shown how the notch sensitivity index of any material must always be defined in terms of its microstructure. It was found that for the same specimen geometry and loading conditions and identical stress concentrators, the influence of the stress concentrator is directly dependent on the relationship between their dimension and the grain size.http://dx.doi.org/10.1051/matecconf/20141204016 |
| spellingShingle | Lorenzino Pablo Navarro Alfredo Fatigue notch sensitivity as a function of the notch to grain size relationship MATEC Web of Conferences |
| title | Fatigue notch sensitivity as a function of the notch to grain size relationship |
| title_full | Fatigue notch sensitivity as a function of the notch to grain size relationship |
| title_fullStr | Fatigue notch sensitivity as a function of the notch to grain size relationship |
| title_full_unstemmed | Fatigue notch sensitivity as a function of the notch to grain size relationship |
| title_short | Fatigue notch sensitivity as a function of the notch to grain size relationship |
| title_sort | fatigue notch sensitivity as a function of the notch to grain size relationship |
| url | http://dx.doi.org/10.1051/matecconf/20141204016 |
| work_keys_str_mv | AT lorenzinopablo fatiguenotchsensitivityasafunctionofthenotchtograinsizerelationship AT navarroalfredo fatiguenotchsensitivityasafunctionofthenotchtograinsizerelationship |