Schmidt, Alexander T. ; Kraft, Jan (2023)
A new equivalent stress approach based on complex invariants: The COIN LiWI method.
In: International Journal of Fatigue, 168
doi: 10.1016/j.ijfatigue.2022.107474
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this paper, a new equivalent stress approach is presented, which builds on the basic ideas of linear wave interference (LiWI) and thus leads to physically valid signals. Complex invariants (COIN) were introduced for the derivation, whereby a generalized calculation method with consideration of the tension shear strength ratio could be derived following the formulation of Mertens (1988). The LiWI approach was also applied to an equivalent stress formulation from the German FKM guideline (Rennert et al., 2021). Both approaches were tested and compared with signed von-Mises using existing experiments with a wide range of different loads, e.g. nonproportional, variable, frequency superimposed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Schmidt, Alexander T. ; Kraft, Jan |
| Art des Eintrags: | Bibliographie |
| Titel: | A new equivalent stress approach based on complex invariants: The COIN LiWI method |
| Sprache: | Englisch |
| Publikationsjahr: | März 2023 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | International Journal of Fatigue |
| Jahrgang/Volume einer Zeitschrift: | 168 |
| Kollation: | 15 Seiten |
| DOI: | 10.1016/j.ijfatigue.2022.107474 |
| Kurzbeschreibung (Abstract): | In this paper, a new equivalent stress approach is presented, which builds on the basic ideas of linear wave interference (LiWI) and thus leads to physically valid signals. Complex invariants (COIN) were introduced for the derivation, whereby a generalized calculation method with consideration of the tension shear strength ratio could be derived following the formulation of Mertens (1988). The LiWI approach was also applied to an equivalent stress formulation from the German FKM guideline (Rennert et al., 2021). Both approaches were tested and compared with signed von-Mises using existing experiments with a wide range of different loads, e.g. nonproportional, variable, frequency superimposed. |
| Zusätzliche Informationen: | Artikel-ID: 107474 |
| 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: | 27 Mär 2024 14:08 |
| Letzte Änderung: | 27 Mär 2024 14:08 |
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