TY - CONF A1 - Pavlovic, Mato A1 - Müller, Christina T1 - Ganzheitliche Zuverlässigkeit - POD der Prüfung von Bauteilen mit komplexer Geometrie T2 - DGZfP-Jahrestagung 2011 T2 - DGZfP-Jahrestagung 2011 CY - Bremen, Germany DA - 2011-05-30 PY - 2011 AN - OPUS4-24584 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Boehm, R. A1 - Müller, Christina A1 - Ronneteg, U. T1 - Evaluation of the Transmit Receive Longitudinal (TRL) Ultrasonic Inspection of the Nodular Cast Iron Insert for Permanent Storage of High-Level Radioactive Waste by Means of Probalbility of Detection T2 - ASNT Spring Research Symposium and Conference T2 - ASNT Spring Research Symposium and Conference CY - San Francisco, CA, USA DA - 2011-03-21 PY - 2011 AN - OPUS4-24590 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Müller, Christina A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Multi-Parameter Approach to Structural Integrity T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-27006 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Müller, Christina A1 - Heckel, Thomas A1 - Zoëga, Andreas T1 - Reliability analysis of the ultrasonic inspection system for the inspection of hollow railway axles N2 - Axles are safety critical train components that are subjected to significant cyclic loading during operation. If the crack is initiated in the axle, cyclic loading will lead to crack propagation. To maintain structural integrity, axles must be periodically inspected for fatigue cracks in the material. Deutsche Bahn uses mechanized ultrasonic inspection system to inspect hollow railway axles. The inspections are performed from the bore surface, using several conventional transducers with different incident angles, inspecting the axle along the entire length. As with the every safety critical system, the reliability of these inspections must be determined with regard to their flaw detection capabilities. Traditionally this is done according to the relevant standards for railway vehicles. To investigate the capability of the NDT system more thoroughly, we want to evaluate the capability of the inspection system to detect flaws by means of probability of detection (POD) curves. It will be shown that other parameters, beside the size of the crack, for example crack position in the axle, influence the detection of the crack. The influence of these parameters was evaluated using ultrasonic simulation. The evaluation served as an input for the manufacturing of the flaws in the real scale axle. Once these axles are inspected and the data evaluated, using data from both measurement and simulation, we will express the POD of the crack as function of influencing parameters using the multiparameter POD model. T2 - Proceedings of the 19th World Conference on Nondestructive Testing CY - Munich, Germany DA - 13.06.2016 KW - Detection KW - Simulation KW - Ultrasonic KW - Railway KW - Reliability KW - POD KW - Crack PY - 2016 AN - OPUS4-36702 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Müller, Christina A1 - Ronneteg, U. T1 - Reliability Analysis of the Phased-Array Ultrasonic System used for the Inspection of Friction Stir Welds of Copper Canisters N2 - The canister for the permanent storage of spent nuclear fuel used by SKB in Sweden consists of a cast iron insert surrounded by a five centimetre thick shell of copper. It is a safety critical component and in order to secure long-term structural integrity non-destructive methods are used to inspect 100% of the volume of each canister, before it is disposed of in the repository. One of the critical components that requires inspection is a sealing weld, joining the copper tube and the lid. The friction stir weld is inspected using an ultrasonic phased array system. The area of the weld is inspected with several inspection channels with different angles and varying coverage. To make sure that no defects that might occur in the weld are overseen, the reliability of the inspection must be quantified. The reliability of NDT is usually quantified with the probability of detection curves. The influence of the parameters that might influence the POD of the flaws in the weld is investigated analysing the experimental results, as well as with a help of a numerical simulation of the inspection. T2 - Proceedings of the 19th World Conference on Nondestructive Testing CY - Munich, Germany DA - 13.06.2016 KW - Ultrasonic KW - Copper KW - NDT KW - FSW KW - JLH KW - Weld KW - POD KW - Reliability PY - 2016 AN - OPUS4-36703 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Boehm, Rainer A1 - Müller, Christina A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Investigation of the Influence Material Attenuation on the POD of the Flaws as a Part of Multi-Parameter Analysis T2 - 8th International Conference on NDE in Relation to Structural for Nuclear an Pressurised Components T2 - 8th International Conference on NDE in Relation to Structural for Nuclear an Pressurised Components CY - Berlin, Germany DA - 2010-09-29 PY - 2010 AN - OPUS4-22453 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Boehm, Rainer A1 - Müller, Christina A1 - Ronneteg, U. T1 - Investigation of the Influence of the Material Attenuation on the POD of the Flaws as a Part of Multi-parameter Analysis T2 - ASNT 19th Annual Research Symposium and Spring Conference 2010 T2 - ASNT 19th Annual Research Symposium and Spring Conference 2010 CY - Williamsburg, VA, USA DA - 2010-03-22 PY - 2010 AN - OPUS4-22454 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Müller, Christina A1 - Spokoiny, V. T1 - Multiparameter-POD Analyse T2 - 3. GMA-Expertenforum "Neue Entwicklungen in der Messdatenauswertung und Messunsicherheitsbestimmung" T2 - 3. GMA-Expertenforum "Neue Entwicklungen in der Messdatenauswertung und Messunsicherheitsbestimmung" CY - Vienna, Austria DA - 2010-03-10 PY - 2010 AN - OPUS4-22427 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Takahashi, Kazunori A1 - Müller, Christina A1 - Ronneteg, U. T1 - Influence of Flaw Parameters on the POD of the UT NDT System T2 - 17th Annual Research Symposium T2 - 17th Annual Research Symposium CY - Anaheim, CA, USA DA - 2008-03-31 PY - 2008 AN - OPUS4-18534 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Takahashi, Kazunori A1 - Müller, Christina A1 - Pitkänen, J. T1 - The Total Reliability of NDT Methods Used for Inspection of the EB Weld of the Copper Canister used for a Long-term Storage of Spent Nuclear Fuel T2 - 7th international Conference on NDE T2 - 7th international Conference on NDE CY - Yokohama, Japan DA - 2009-05-12 PY - 2009 AN - OPUS4-20548 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -