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Very high cycle fatigue testing on an electrodynamic shaker system

  • Fatigue testing in the VHCF ränge requires testing machines with increased frequencies. However, application of energy-saving resonance testing leads to a linkage between test frequency and specimen Parameters. The frequency ränge and the available forces of the testing machine are limiting possible specimen dimensions. Electrodynamic shakers combine test frequencies up to 4000 Hz with forces in the kN range. Thus, a relatively wide range of tests is possible which allows studying the influence of specimen size on VHCF behaviour. Electrodynamic shakers as well as the respective Computer control Systems and Vibration measurement techniques are well established in scientific and technical applications. We present results of a first study of VHCF testing on electrodynamic shakers conducted at BAM. Test frequency, specimen size and stress levels have been varied. One goal is to balance the needs of materials testing with the Standard test Systems of environmental Simulation to provide aFatigue testing in the VHCF ränge requires testing machines with increased frequencies. However, application of energy-saving resonance testing leads to a linkage between test frequency and specimen Parameters. The frequency ränge and the available forces of the testing machine are limiting possible specimen dimensions. Electrodynamic shakers combine test frequencies up to 4000 Hz with forces in the kN range. Thus, a relatively wide range of tests is possible which allows studying the influence of specimen size on VHCF behaviour. Electrodynamic shakers as well as the respective Computer control Systems and Vibration measurement techniques are well established in scientific and technical applications. We present results of a first study of VHCF testing on electrodynamic shakers conducted at BAM. Test frequency, specimen size and stress levels have been varied. One goal is to balance the needs of materials testing with the Standard test Systems of environmental Simulation to provide a powerful and flexible tool for very high cycle fatigue testing. Further investigation to optimize the technique is required.zeige mehrzeige weniger

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Metadaten
Autor*innen:Michael Schurig, Christian Klinger, Dieter Schöne, Claus-Peter Bork, Dietmar Klingbeil
Persönliche Herausgeber*innen:H.-J. Christ, C. Berger
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):VHCF5 - 5th International conference on very high cycle fatigue (Proceedings)
Jahr der Erstveröffentlichung:2011
Herausgeber (Institution):Deutscher Verband für Materialforschung und -prüfung e.V. (DVM)
Erste Seite:433
Letzte Seite:438
Freie Schlagwörter:Electrodynamic shaker; Elektrodynamisch; Envrionmental simulation; Prüfung; Resonance testing; Shaker; Specimen size; Two-degree-of-freedom system; VHCF; Variable frequency
Veranstaltung:VHCF5 - 5th International conference on very high cycle fatigue
Veranstaltungsort:Berlin, Germany
Beginndatum der Veranstaltung:28.06.2011
Enddatum der Veranstaltung:30.06.2011
ISBN:978-3-9814516-0-3
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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