Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects
There are limited experimental data on VHCF for structural steels for ><inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>7</mn></msup></semantics></ma...
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MDPI AG
2023-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/5/1799 |
| _version_ | 1797614956967886848 |
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| author | Yevgen Gorash Tugrul Comlekci Gary Styger James Kelly Frazer Brownlie Lewis Milne |
| author_facet | Yevgen Gorash Tugrul Comlekci Gary Styger James Kelly Frazer Brownlie Lewis Milne |
| author_sort | Yevgen Gorash |
| collection | DOAJ |
| description | There are limited experimental data on VHCF for structural steels for ><inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>7</mn></msup></semantics></math></inline-formula> cycles. Unalloyed low-carbon steel S275JR+AR is a common structural material for the heavy machinery in minerals, sand and aggregate applications. The purpose of this research is to investigate the fatigue behaviour in the gigacycle domain (><inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>9</mn></msup></semantics></math></inline-formula> cycles) for S275JR+AR grade steel. This is achieved using accelerated ultrasonic fatigue testing in as-manufactured, pre-corroded and non-zero mean stress conditions. As internal heat generation is a massive challenge for ultrasonic fatigue testing of structural steels which exhibit a pronounced frequency effect, effective temperature control is crucial for implementation of testing. The frequency effect is assessed by comparing the test data at 20 kHz and 15–20 Hz. Its contribution is significant, as there is no overlap between the stress ranges of interest. The obtained data are intended to be applied to the fatigue assessments of the equipment operating at the frequency for up to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>10</mn></msup></semantics></math></inline-formula> cycles over years of continuous service. |
| first_indexed | 2024-03-11T07:19:38Z |
| format | Article |
| id | doaj.art-75e07ac0e6a042cc9708043bcd7d8fd9 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T07:19:38Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-75e07ac0e6a042cc9708043bcd7d8fd92023-11-17T08:03:01ZengMDPI AGMaterials1996-19442023-02-01165179910.3390/ma16051799Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency EffectsYevgen Gorash0Tugrul Comlekci1Gary Styger2James Kelly3Frazer Brownlie4Lewis Milne5Weir Advanced Research Centre, Technology & Innovation Centre, University of Strathclyde, 99 George Street, Glasgow G1 1RD, UKWeir Advanced Research Centre, Technology & Innovation Centre, University of Strathclyde, 99 George Street, Glasgow G1 1RD, UKWeir Minerals South Africa, Weir Group, Isando, Johannesburg 1600, South AfricaAdvanced Materials Research Laboratory, University of Strathclyde, Glasgow G1 1XQ, UKWeir Advanced Research Centre, Technology & Innovation Centre, University of Strathclyde, 99 George Street, Glasgow G1 1RD, UKWeir Advanced Research Centre, Technology & Innovation Centre, University of Strathclyde, 99 George Street, Glasgow G1 1RD, UKThere are limited experimental data on VHCF for structural steels for ><inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>7</mn></msup></semantics></math></inline-formula> cycles. Unalloyed low-carbon steel S275JR+AR is a common structural material for the heavy machinery in minerals, sand and aggregate applications. The purpose of this research is to investigate the fatigue behaviour in the gigacycle domain (><inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>9</mn></msup></semantics></math></inline-formula> cycles) for S275JR+AR grade steel. This is achieved using accelerated ultrasonic fatigue testing in as-manufactured, pre-corroded and non-zero mean stress conditions. As internal heat generation is a massive challenge for ultrasonic fatigue testing of structural steels which exhibit a pronounced frequency effect, effective temperature control is crucial for implementation of testing. The frequency effect is assessed by comparing the test data at 20 kHz and 15–20 Hz. Its contribution is significant, as there is no overlap between the stress ranges of interest. The obtained data are intended to be applied to the fatigue assessments of the equipment operating at the frequency for up to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mn>10</mn></msup></semantics></math></inline-formula> cycles over years of continuous service.https://www.mdpi.com/1996-1944/16/5/1799structural steelvery high cycle fatigueultrasonic fatiguecorrosionfrequency effectmean stress correction |
| spellingShingle | Yevgen Gorash Tugrul Comlekci Gary Styger James Kelly Frazer Brownlie Lewis Milne Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects Materials structural steel very high cycle fatigue ultrasonic fatigue corrosion frequency effect mean stress correction |
| title | Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects |
| title_full | Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects |
| title_fullStr | Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects |
| title_full_unstemmed | Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects |
| title_short | Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects |
| title_sort | ultrasonic fatigue testing of structural steel s275jr ar with insights into corrosion mean stress and frequency effects |
| topic | structural steel very high cycle fatigue ultrasonic fatigue corrosion frequency effect mean stress correction |
| url | https://www.mdpi.com/1996-1944/16/5/1799 |
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