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Tesch, Andreas und Pippan, Reinhard und Döker, Hubert (2006) New Testing Procedure to Determine da/dN - K curves at different, Constant R-Values Using One Single Specimen. In: Fatigue 2006, Proceedings 9th International Fatigue Congress May 14-19, 2006 Atlanta , Georgia, USA. Elsevier Ltd., GB. Fatigue 2006, 9th International Fatigue Congress, 2006-05-14 - 2006-05-19, Atlanta, Georgia, USA.
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Kurzfassung
A new concept for fatigue crack propagation tests has been developed. Using a single specimen, it is possible to determine fatigue crack growth curves (da/dN - K) for every stress ratio between R = 0.9 and R = -1. Additionally, the new concept also provides threshold values for fatigue crack growth for different values of R. In combination with a continuous, autonomous crack length measurement tool (such as the DC potential drop method) this testing procedure can be implemented with minimal time and effort. The test procedure consists of a sequence of Kmax - constant tests with decreasing crack growth rates. There should be no load history effects. According to the procedures described in the ASTM Standard E 647, the results using this new testing procedure fit very well to the da/dN - K curves generated with different specimens. The tests fulfil all the requirements of ASTM Standard E 647.
| elib-URL des Eintrags: | https://elib.dlr.de/46118/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||
| Titel: | New Testing Procedure to Determine da/dN - K curves at different, Constant R-Values Using One Single Specimen | ||||||||||||||||
| Autoren: |
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| Datum: | Mai 2006 | ||||||||||||||||
| Erschienen in: | Fatigue 2006, Proceedings 9th International Fatigue Congress May 14-19, 2006 Atlanta , Georgia, USA | ||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| Verlag: | Elsevier Ltd., GB | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Long cracks, fatigue crack growth, Kmax - tests, threshold, aluminium alloys | ||||||||||||||||
| Veranstaltungstitel: | Fatigue 2006, 9th International Fatigue Congress | ||||||||||||||||
| Veranstaltungsort: | Atlanta, Georgia, USA | ||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
| Veranstaltungsdatum: | 2006-05-14 - 2006-05-19 | ||||||||||||||||
| Veranstalter : | Elsevier Ltd. | ||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | Starrflügler (alt) | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Strukturen & Werkstoffe (alt) | ||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Werkstoffmechanische Prüfung | ||||||||||||||||
| Hinterlegt von: | Döker, Dr.-Ing. Hubert | ||||||||||||||||
| Hinterlegt am: | 12 Dez 2006 | ||||||||||||||||
| Letzte Änderung: | 14 Jan 2010 23:57 |
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