StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045
Within the scope of this research, a new short-time procedure designated as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e<...
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MDPI AG
2023-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/11/3914 |
| _version_ | 1797597251966599168 |
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| author | Fabian Weber Janina Koziol Peter Starke |
| author_facet | Fabian Weber Janina Koziol Peter Starke |
| author_sort | Fabian Weber |
| collection | DOAJ |
| description | Within the scope of this research, a new short-time procedure designated as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>L</mi><mi>i</mi><mi>f</mi><msub><mi>e</mi><mrow><mi>H</mi><mi>C</mi><mi>F</mi></mrow></msub></mrow></semantics></math></inline-formula> was developed. Through a combination of classic fatigue testing and non-destructive monitoring of the material response due to cyclic loading, a process-oriented fatigue life determination can be carried out. A total of two load increases and two constant amplitude tests are required for this procedure. By using data from non-destructive measurements, the parameters of the elastic approach according to Basquin and the plastic approach according to Manson–Coffin were determined and combined within the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>L</mi><mi>i</mi><mi>f</mi><msub><mi>e</mi><mrow><mi>H</mi><mi>C</mi><mi>F</mi></mrow></msub></mrow></semantics></math></inline-formula> calculation. Furthermore, two additional variations of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>L</mi><mi>i</mi><mi>f</mi><msub><mi>e</mi><mrow><mi>H</mi><mi>C</mi><mi>F</mi></mrow></msub></mrow></semantics></math></inline-formula> method were developed in order to be able to accurately describe the S-N curve over a wider range. The main focus of this research was 20MnMoNi5-5 steel, which is a ferritic-bainitic steel (1.6310). This steel is widely used for spraylines in German nuclear power plants. In order to validate the findings, tests were also performed on an SAE 1045 steel (1.1191). |
| first_indexed | 2024-03-11T03:03:58Z |
| format | Article |
| id | doaj.art-b2ea526142ef41a8b16257ce5cfe1ca4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T03:03:58Z |
| publishDate | 2023-05-01 |
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| spelling | doaj.art-b2ea526142ef41a8b16257ce5cfe1ca42023-11-18T08:07:45ZengMDPI AGMaterials1996-19442023-05-011611391410.3390/ma16113914StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045Fabian Weber0Janina Koziol1Peter Starke2Department of Materials Sciences and Materials Testing (WWHK), Institude QM<sup>3</sup>, University of Applied Sciences, Schoenstraße 11, 67659 Kaiserslautern, GermanyDepartment of Materials Sciences and Materials Testing (WWHK), Institude QM<sup>3</sup>, University of Applied Sciences, Schoenstraße 11, 67659 Kaiserslautern, GermanyDepartment of Materials Sciences and Materials Testing (WWHK), Institude QM<sup>3</sup>, University of Applied Sciences, Schoenstraße 11, 67659 Kaiserslautern, GermanyWithin the scope of this research, a new short-time procedure designated as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>L</mi><mi>i</mi><mi>f</mi><msub><mi>e</mi><mrow><mi>H</mi><mi>C</mi><mi>F</mi></mrow></msub></mrow></semantics></math></inline-formula> was developed. Through a combination of classic fatigue testing and non-destructive monitoring of the material response due to cyclic loading, a process-oriented fatigue life determination can be carried out. A total of two load increases and two constant amplitude tests are required for this procedure. By using data from non-destructive measurements, the parameters of the elastic approach according to Basquin and the plastic approach according to Manson–Coffin were determined and combined within the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>L</mi><mi>i</mi><mi>f</mi><msub><mi>e</mi><mrow><mi>H</mi><mi>C</mi><mi>F</mi></mrow></msub></mrow></semantics></math></inline-formula> calculation. Furthermore, two additional variations of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>S</mi><mi>t</mi><mi>r</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>L</mi><mi>i</mi><mi>f</mi><msub><mi>e</mi><mrow><mi>H</mi><mi>C</mi><mi>F</mi></mrow></msub></mrow></semantics></math></inline-formula> method were developed in order to be able to accurately describe the S-N curve over a wider range. The main focus of this research was 20MnMoNi5-5 steel, which is a ferritic-bainitic steel (1.6310). This steel is widely used for spraylines in German nuclear power plants. In order to validate the findings, tests were also performed on an SAE 1045 steel (1.1191).https://www.mdpi.com/1996-1944/16/11/3914fatigueshort-time procedureload increase testnon-destructive testing20MnMoNi5-5 |
| spellingShingle | Fabian Weber Janina Koziol Peter Starke StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045 Materials fatigue short-time procedure load increase test non-destructive testing 20MnMoNi5-5 |
| title | StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045 |
| title_full | StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045 |
| title_fullStr | StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045 |
| title_full_unstemmed | StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045 |
| title_short | StressLife: A Short-Time Approach for the Determination of a Trend S-N Curve in and beyond the HCF Regime for the Steels 20MnMoNi5-5 and SAE 1045 |
| title_sort | stresslife a short time approach for the determination of a trend s n curve in and beyond the hcf regime for the steels 20mnmoni5 5 and sae 1045 |
| topic | fatigue short-time procedure load increase test non-destructive testing 20MnMoNi5-5 |
| url | https://www.mdpi.com/1996-1944/16/11/3914 |
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