Comparison of Analysis Methods of Data from Thermographic Measurements of Al 2024 Fatigue Limit For R=0.1
The traditional methods for fatigue characterization of metallic materials are expensive and extremely time consuming. In order to overcome these shortcomings, the Thermographic Method (TM), based on thermographic analysis, is applied to estimate the fatigue limit of Al 2024. The temperature incr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
VSB-Technical University of Ostrava
2013-12-01
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| Series: | Transactions of the VŠB-Technical University of Ostrava, Mechanical Series |
| Subjects: | |
| Online Access: | http://transactions.fs.vsb.cz/2013-2/1969.pdf |
| Summary: | The traditional methods for fatigue characterization of metallic materials are expensive and
extremely time consuming. In order to overcome these shortcomings, the Thermographic Method
(TM), based on thermographic analysis, is applied to estimate the fatigue limit of Al 2024. The
temperature increase due to localized microplasticity is considered as the fatigue damage indicator.
An experimental program is carried out to assess the fatigue limit both as resulting from the S–N field
and, directly, from thermographic measurement. For the latter, three different methods are applied for
the estimation of the AL 2024 fatigue limit and the out-coming results discussed. The values of
fatigue limit predicted from the thermographic method according to the three methods are in good
agreement to that derived from the traditional S-N procedure. |
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| ISSN: | 1210-0471 1804-0993 |