Schreiber, Christoph ; Kuhn, Charlotte ; Müller, Ralf (2019)
Phase field modeling of cyclic fatigue crack growth under mixed mode loading.
In: Computer Methods in Materials Science, 2019 (19)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
For the numerical handling of nucleation and extension of cracks within different materials, phase field modeling of fracture was shown to be a very beneficial technique in the past decade. Within numerous studies the framework was successfully applied even to complex crack problems. However, a phenomenon, which has not been much in the focus of research in terms of phase field modeling, is cyclic fatigue crack growth. Within technical developments this phenomenon is crucial as it has been found to be the source of several devastating accidents in the past. Within this work we introduce a phase field model capable of capturing fatigue crack growth under unidirectional as well as mixed mode loading. The driving force of the fatigue mechanism is controlled by cyclic damage evaluated from Miner's rule, a very famous and robust phenomenological law within fatigue simulations. Among the prediction of realistic crack growth curves, the accuracy of the model is verified by comparison with analytic results regarding the crack growth direction.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Schreiber, Christoph ; Kuhn, Charlotte ; Müller, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Phase field modeling of cyclic fatigue crack growth under mixed mode loading |
| Sprache: | Englisch |
| Publikationsjahr: | 2019 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Computer Methods in Materials Science |
| Jahrgang/Volume einer Zeitschrift: | 2019 |
| (Heft-)Nummer: | 19 |
| Kurzbeschreibung (Abstract): | For the numerical handling of nucleation and extension of cracks within different materials, phase field modeling of fracture was shown to be a very beneficial technique in the past decade. Within numerous studies the framework was successfully applied even to complex crack problems. However, a phenomenon, which has not been much in the focus of research in terms of phase field modeling, is cyclic fatigue crack growth. Within technical developments this phenomenon is crucial as it has been found to be the source of several devastating accidents in the past. Within this work we introduce a phase field model capable of capturing fatigue crack growth under unidirectional as well as mixed mode loading. The driving force of the fatigue mechanism is controlled by cyclic damage evaluated from Miner's rule, a very famous and robust phenomenological law within fatigue simulations. Among the prediction of realistic crack growth curves, the accuracy of the model is verified by comparison with analytic results regarding the crack growth direction. |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik > Fachgebiet Kontinuumsmechanik |
| Hinterlegungsdatum: | 04 Mai 2022 11:31 |
| Letzte Änderung: | 04 Mai 2022 11:31 |
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