TY - RPRT A1 - Schöne, Dieter A1 - Bork, Claus-Peter T1 - Schwing- und Betriebsfestigkeitsuntersuchungen an Eisenbahnschienen UIC 60 unter Wechselbiegung N2 - Die Forschungsstelle BAM führte Untersuchungen zur Ausbreitung von Querrissen im Bauteil Schiene in zehn Einstufen und Betriebsfestigkeitsversuchen durch. Es wurden die Lebensdauer und die Rissentwicklung einer durch einen außermittigen Kerb vorgeschädigten Schiene des Profils 60 E1 (260) ermittelt. Die gekerbten Schienen zeigen ein zu aus der Literatur bekannten Schienen mit starken Head Checks vergleichbares Verhalten. Der Rissfortschritt der Bauteilversuche wird mit Ergebnissen an SE(B)-Proben verglichen. Die Ableitung der Belastungsfunktion aus realen Schienenbelastungen für die 3-Punkt-Biegung unter Wechsellast und die Versuchsbedingungen werden als Basis für die Validierung von Berechnungsverfahren hinreichend beschrieben. T3 - BAM Forschungsberichtreihe - 283 PY - 2009 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-1685 SN - 978-3-9812354-0-1 SN - 0938-5533 VL - 283 SP - 1 EP - 37 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-168 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hünecke, Joachim A1 - Schöne, Dieter A1 - Klingbeil, Dietmar A1 - Bork, Claus-Peter T1 - Advanced life prediction by microstructural simulation of short cracks in a low carbon steel JF - International Journal of Fatigue N2 - This paper deals with life prediction by observation and simulation of short fatigue cracks in cyclically loaded smooth and notched specimens made of 0.15 wt-% carbon steel SAE1017. The measured crack behaviour was simulated in a microstructural environment. Reference tests under constant amplitude loading allowed to determine model parameters and hence a reasonable life prediction by simulation resulted even for service loading. Short crack behaviour was a measurable property for damage also to compare smooth and notched specimens. KW - Short cracks KW - Life prediction KW - Simulation KW - Fatigue KW - Microstructure KW - Service loading KW - Notch KW - Kurze Risse KW - Gefüge KW - Ermüdung KW - Lebensdauer PY - 2006 DO - https://doi.org/10.1016/j.ijfatigue.2005.07.049 SN - 0142-1123 VL - 28 IS - 9 SP - 993 EP - 1000 PB - Elsevier CY - Oxford AN - OPUS4-12559 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schurig, Michael A1 - Klinger, Christian A1 - Schöne, Dieter A1 - Bork, Claus-Peter A1 - Klingbeil, Dietmar ED - Christ, H.-J. ED - Berger, C. T1 - Very high cycle fatigue testing on an electrodynamic shaker system T2 - VHCF5 - 5th International conference on very high cycle fatigue (Proceedings) N2 - 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 a powerful and flexible tool for very high cycle fatigue testing. Further investigation to optimize the technique is required. T2 - VHCF5 - 5th International conference on very high cycle fatigue CY - Berlin, Germany DA - 28.06.2011 KW - Electrodynamic shaker KW - Resonance testing KW - Variable frequency KW - Envrionmental simulation KW - Specimen size KW - Two-degree-of-freedom system KW - VHCF KW - Shaker KW - Elektrodynamisch KW - Prüfung PY - 2011 SN - 978-3-9814516-0-3 SP - 433 EP - 438 AN - OPUS4-25067 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Brekow, Gerhard A1 - Bork, Claus-Peter A1 - Schöne, Dieter A1 - Köhler, Frank T1 - Risstiefenbestimmung mit Ultraschall an dauerschwingbelasteten Schienentestkörpern T2 - ZfP in Forschung, Entwicklung und Anwendung - Jahrestagung 2007 T2 - DGZfP-Jahrestagung 2007 CY - Fürth, Deutschland DA - 2007-05-14 KW - Schienentestkörper KW - Periodische Lastwechselbeanspruchung KW - Ultraschall KW - Risstiefenbestimmung KW - Risslängenbestimmung PY - 2007 SN - 978-3-931381-98-1 SP - 1 EP - 6 PB - DGZfP CY - Berlin AN - OPUS4-15856 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Schöne, Dieter A1 - Bork, Claus-Peter ED - Klingbeil, D. ED - Vormwald, M. ED - Eulitz, K.-G. T1 - Fatigue investigations of damaged railway rails of UIC 60 profile T2 - 18th European conference on fracture (ECF 18) - Fracture of materials and structures from micro to macro scale (Proceedings) N2 - The development of procedures to calculate the service life of railway rails requires test results which describe the damage of rails thus affording their validation. Within the DEUFRAKO integrated project NOVUM, ten rail specimens were tested under constant and variable amplitude loads to investigate the propagation of lateral cracks and to ascertain the service life. The test conditions were based on real rail loading and were used in the 3-point-bending test frame under alternating stress. An eccentric notch was applied as pre-arranged damage in the 60 E1 (260) rail specimens. The notched rails showed a similar behaviour like rails with strong head checks damaged by rolling contact fatigue. T2 - 18th European conference on fracture (ECF 18) - Fracture of materials and structures from micro to macro scale CY - Dresden, Germany DA - 2010-08-30 KW - Railway rail KW - Notch KW - Service loading fatigue KW - Crack propagation KW - Bending KW - Damage PY - 2010 SN - 978-3-00-031802-3 IS - Paper 88 SP - 1 EP - 8 AN - OPUS4-22328 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -