Wächter, Michael ; Linn, Alexander ; Wuthenow, Ralf ; Esderts, Alfons ; Gaier, Christian ; Kraft, Jan ; Fällgren, Carl ; Vormwald, Michael (2022)
On Scaled Normal Stresses in Multiaxial Fatigue and Their Exemplary Application to Ductile Cast Iron.
In: Applied Mechanics, 2022, 3 (1)
doi: 10.26083/tuprints-00022187
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
The approaches used to calculate the fatigue life of components must inevitably consider multiaxial stresses. Compared to proportional loading, the calculation of nonproportional loading is particularly challenging, especially since different materials exhibit the effects of nonproportional hardening and shifts in fatigue life. In this paper, the critical plane approach of scaled normal stresses, first proposed by Gaier and Dannbauer and later published in a modified version by Riess et al., is investigated in detail. It is shown that, on the one hand, compatibilities exist or can be established with known proportional strength criteria that can account for the varying ductility of different materials. Furthermore, it is demonstrated that the scaled normal stress approach can be formulated in such a way that different strength criteria can be used therein. As an example, the generally formulated approach for scaled normal stresses is applied to test results from ductile cast iron material EN-GJS-500-14. Different correction factors accounting for nonproportional loading are investigated. Through appropriate parameterization of one of the studied corrections, proportional and nonproportional test results were observed to fall within one common scatter band.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Wächter, Michael ; Linn, Alexander ; Wuthenow, Ralf ; Esderts, Alfons ; Gaier, Christian ; Kraft, Jan ; Fällgren, Carl ; Vormwald, Michael |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | On Scaled Normal Stresses in Multiaxial Fatigue and Their Exemplary Application to Ductile Cast Iron |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Mechanics |
| Jahrgang/Volume einer Zeitschrift: | 3 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.26083/tuprints-00022187 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22187 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The approaches used to calculate the fatigue life of components must inevitably consider multiaxial stresses. Compared to proportional loading, the calculation of nonproportional loading is particularly challenging, especially since different materials exhibit the effects of nonproportional hardening and shifts in fatigue life. In this paper, the critical plane approach of scaled normal stresses, first proposed by Gaier and Dannbauer and later published in a modified version by Riess et al., is investigated in detail. It is shown that, on the one hand, compatibilities exist or can be established with known proportional strength criteria that can account for the varying ductility of different materials. Furthermore, it is demonstrated that the scaled normal stress approach can be formulated in such a way that different strength criteria can be used therein. As an example, the generally formulated approach for scaled normal stresses is applied to test results from ductile cast iron material EN-GJS-500-14. Different correction factors accounting for nonproportional loading are investigated. Through appropriate parameterization of one of the studied corrections, proportional and nonproportional test results were observed to fall within one common scatter band. |
| Freie Schlagworte: | multiaxial fatigue, critical plane, scaled normal stresses, proportional loading, nonproportional loading, ductile cast iron |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-221876 |
| Zusätzliche Informationen: | This article belongs to the Topic Fatigue and Fracture Assessment of Structural Components and Materials |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Stahlbau und Werkstoffmechanik 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Stahlbau und Werkstoffmechanik > Fachgebiet Werkstoffmechanik |
| Hinterlegungsdatum: | 05 Sep 2022 13:17 |
| Letzte Änderung: | 06 Sep 2022 09:00 |
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