A two-step multiaxial racetrack filter algorithm for non-proportional load histories
The recently proposed multiaxial racetrack filter (MRF) is able to deal with general non-proportional multiaxial load histories. While only requiring a single user-defined scalar filter amplitude, the MRF is able to synchronously eliminate non-damaging events from any noisy multiaxial load history w...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2017-06-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1854 |
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| author | Marco Antonio Meggiolaro Jaime Tupiassú Pinho de Castro Hao Wu |
| author_facet | Marco Antonio Meggiolaro Jaime Tupiassú Pinho de Castro Hao Wu |
| author_sort | Marco Antonio Meggiolaro |
| collection | DOAJ |
| description | The recently proposed multiaxial racetrack filter (MRF) is able to deal with general non-proportional multiaxial load histories. While only requiring a single user-defined scalar filter amplitude, the MRF is able to synchronously eliminate non-damaging events from any noisy multiaxial load history without changing the overall shape of its original path, a necessary condition to avoid introducing errors in fatigue damage assessments. The MRF procedures are optimized here by the introduction of a pre-processing “partitioning” step on the load history data, which selects candidates for the reversal points in a robust partitioning process, highly increasing the filter efficiency and decreasing its computational time. The improved MRF is evaluated through the fatigue analyses of over-sampled tension-torsion data measured in 316L stainless steel tubular specimens under non-proportional load paths. |
| format | Article |
| id | doaj-art-c7b82902ea2e46ee8bdf5dc5381d5acc |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2017-06-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-c7b82902ea2e46ee8bdf5dc5381d5acc2024-12-02T05:48:16ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-06-011141A two-step multiaxial racetrack filter algorithm for non-proportional load historiesMarco Antonio MeggiolaroJaime Tupiassú Pinho de CastroHao WuThe recently proposed multiaxial racetrack filter (MRF) is able to deal with general non-proportional multiaxial load histories. While only requiring a single user-defined scalar filter amplitude, the MRF is able to synchronously eliminate non-damaging events from any noisy multiaxial load history without changing the overall shape of its original path, a necessary condition to avoid introducing errors in fatigue damage assessments. The MRF procedures are optimized here by the introduction of a pre-processing “partitioning” step on the load history data, which selects candidates for the reversal points in a robust partitioning process, highly increasing the filter efficiency and decreasing its computational time. The improved MRF is evaluated through the fatigue analyses of over-sampled tension-torsion data measured in 316L stainless steel tubular specimens under non-proportional load paths.https://www.fracturae.com/index.php/fis/article/view/1854Multiaxial racetrack filter (MRF)Partitioning operationMultiaxial variable amplitude loadingAmplitude filter |
| spellingShingle | Marco Antonio Meggiolaro Jaime Tupiassú Pinho de Castro Hao Wu A two-step multiaxial racetrack filter algorithm for non-proportional load histories Fracture and Structural Integrity Multiaxial racetrack filter (MRF) Partitioning operation Multiaxial variable amplitude loading Amplitude filter |
| title | A two-step multiaxial racetrack filter algorithm for non-proportional load histories |
| title_full | A two-step multiaxial racetrack filter algorithm for non-proportional load histories |
| title_fullStr | A two-step multiaxial racetrack filter algorithm for non-proportional load histories |
| title_full_unstemmed | A two-step multiaxial racetrack filter algorithm for non-proportional load histories |
| title_short | A two-step multiaxial racetrack filter algorithm for non-proportional load histories |
| title_sort | two step multiaxial racetrack filter algorithm for non proportional load histories |
| topic | Multiaxial racetrack filter (MRF) Partitioning operation Multiaxial variable amplitude loading Amplitude filter |
| url | https://www.fracturae.com/index.php/fis/article/view/1854 |
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