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
2017-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero41/numero_41_art_1.pdf |
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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-97c4b2d6d0d843a19973f5910635db3a |
| institution | DOAJ |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2017-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-97c4b2d6d0d843a19973f5910635db3a2025-08-20T02:51:42ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932017-07-0111411710.3221/IGF-ESIS.41.01A two-step multiaxial racetrack filter algorithm for non-proportional load historiesMarco Antonio Meggiolaro0 Jaime Tupiassú Pinho de Castro 1Hao Wu2Pontifical Catholic University of Rio de Janeiro, BrazilPontifical Catholic University of Rio de Janeiro, Brazil Tongji University, ChinaThe 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.http://www.gruppofrattura.it/pdf/rivista/numero41/numero_41_art_1.pdfMultiaxial 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 | http://www.gruppofrattura.it/pdf/rivista/numero41/numero_41_art_1.pdf |
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