TY - RPRT A1 - Wüstenberg, Hermann T1 - Untersuchungen zum Schallfeld von Winkelprüfköpfen für die Materialprüfung mit Ultraschall N2 - In der zerstörungsfreien Materialprüfung mit Ultraschall werden im großen Umfang Winkelprüfköpfe eingesetzt, deren Schallfeld-Verhalten unter Berücksichtigung störender Wellenarten untersucht wird. T3 - BAM Forschungsberichtreihe - 27 PY - 1974 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-4235 SN - 0938-5533 VL - 27 SP - 1 EP - 68 PB - Bundesanstalt für Materialprüfung (BAM) CY - Berlin AN - OPUS4-423 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tscharntke, Dirk A1 - Wüstenberg, Hermann A1 - Erhard, Anton T1 - Ultraschallprüfung an Schweißnähten - Bewertung kritischer Befunde mit Modellrechnungen KW - Ultraschallprüfung KW - Schweißnahtprüfung KW - Modellrechnungen PY - 2000 SN - 0025-5300 N1 - Sprachen: Deutsch/Englisch - Languages: German/English VL - 42 IS - 11-12 SP - 433 EP - 436 PB - Carl Hanser Verlag CY - München AN - OPUS4-1014 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pohl, Rainer A1 - Erhard, Anton A1 - Montag, Hans-Joachim A1 - Thomas, Hans-Martin A1 - Wüstenberg, Hermann T1 - NDT techniques for railroad wheel and gauge corner inspection N2 - The development of non-destructive techniques (NDT) techniques for the in-service inspection of railroad wheels and gauge corners was the main activity of the NDT division VIII. 4 at BAM over the last 2 years. For such different components, two different inspection techniques were fundamentally chosen in order to fulfil the end-user requirements. Firstly the inspection of the wheels—rim and disk—should be carried out without dismantling the wheels and using ultrasonic techniques. On the other hand, the inspection of the railroad track surface at a train speed of about 70 km/h should be guaranteed using eddy current techniques. The above-mentioned tasks were a challenge for the lab staff. The accessibility for the wheel inspection was limited due to several impassable barriers such as sand tubes, etc. Eddy current application focused mainly on the detection of head check defects occurring at the gauge corner of the rail. Investigations carried out also showed, that other types of surface defects (e.g. Belgrospis, wheel burns, short-pitch corrugations, etc.) could easily be detected. Some aspects of the inspection system as well as an overview of test results are presented in the current contribution. KW - Ultraschall- und Wirbelstromprüfung KW - Radsätze von Personenverkehrszügen und Schienen KW - Non-destructive testing method KW - Ultrasonic and eddy current techniques KW - Railway track and wheel inspection PY - 2004 DO - https://doi.org/10.1016/j.ndteint.2003.06.001 SN - 0963-8695 VL - 37 IS - 2 SP - 89 EP - 94 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-2655 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wüstenberg, Hermann A1 - Erhard, Anton A1 - Neundorf, B. T1 - The role of NDT at the primary circuit in german nuclear power plants PY - 2000 SN - 0335-5004 VL - B SP - 35 EP - 39 PB - CIMAX CY - Noisy-le-Grand Cedex AN - OPUS4-1098 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Erhard, Anton A1 - Schulz, Eduard A1 - Brekow, Gerhard A1 - Wüstenberg, Hermann A1 - Kreier, P. T1 - Critical Assessments of the TOFD Approach for Ultrasonic Weld Inspection N2 - Weld inspection using ultrasonic pulse-echo techniques needs high skilled operators especially if geometrical indications must be taken into consideration. A clear separation between geometrical indications and defects like cracks must be guaranteed. This requirement needs sensitive techniques like the 45(deg) shear wave technique using the mirror effect. Since more than twenty years the Time Of Flight Diffraction technique (TOFD) is still under discussion for defect sizing. But on the other hand the potential of the TOFD technique for defect detection is described in technical papers of manufacturers. The main task of examinations carried out at BAM was the comparison about the detectability of surface breaking cracks between the common methods and the TOFD approach. T2 - 7th European Conference on Non-Destructive Testing (ECNDT) CY - Copenhagen, Denmark DA - 1998-05-26 KW - Time of flight diffraction KW - TOFD KW - Ultrasonic weld PY - 2001 SP - AD 1 EP - 199 PB - Society of Manufacturing Engineers CY - Dearborn, Mich. AN - OPUS4-1105 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Boehm, Rainer A1 - Tessaro, Ute A1 - Wüstenberg, Hermann T1 - Characterization and sizing of defects in the cladding area using ultrasonic methods T2 - 3rd International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seville, Spain DA - 2001-11-14 PY - 2002 CY - Seville AN - OPUS4-1748 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mielentz, Frank A1 - Ernst, Hardy A1 - Wüstenberg, Hermann A1 - Mayer, K. A1 - Marklein, R. T1 - Gruppenstrahler für Ultraschallprüfungen von Betonbauteilen - Überprüfung der Funktionsweise eines laufzeitgesteuerten Gruppenstrahlers durch Visualisierung der Wellenausbreitung KW - Gruppenstrahler KW - Beton KW - Wellenausbreitung PY - 2004 SN - 0025-5300 VL - 46 IS - 11-12 SP - 582 EP - 586 PB - Carl Hanser Verlag CY - München AN - OPUS4-4660 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wüstenberg, Hermann A1 - Erhard, Anton A1 - Kutzner, Jürgen T1 - Detection and Analysis of Near Surface-Cracks by Ultrasound T2 - 1st International Symposium on Nondestructive Characterization of Materials CY - Gaithersburg, MD, USA DA - 1978-06-07 PY - 1978 SP - 1(?) EP - 16(?) PB - Plenum Press CY - New York AN - OPUS4-9001 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Engl, G. A1 - Rathgeb, Werner A1 - Wüstenberg, Hermann A1 - Walte, F. T1 - Auslegung von Prüfköpfen und Prüfkopfsystemen für die automatisierte Ultraschallprüfung unter Benutzung beugungstheoretischer Modelle T2 - Europäische Tagung für Zerstörungsfreie Materialprüfung CY - Mainz, Deutschland DA - 1978-04-24 PY - 1978 SP - 115 EP - 121 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung CY - Berlin AN - OPUS4-8981 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Wüstenberg, Hermann A1 - Mundry, Eberhard T1 - 90°-Longitudinalwellen-Winkelprüfkopf zum Nachweis oberflächennaher Risse T2 - Europäische Tagung für Zerstörungsfreie Materialprüfung CY - Mainz, Deutschland DA - 1978-04-24 PY - 1978 VL - 1 SP - 107 EP - 114 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung CY - Berlin AN - OPUS4-8982 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -