Radiographic Investigations of Micro-Ruptures in Technical Diaphrams

Accumulators are used in lots of applications. So they are used as a pressure accumulator for quick energy supply to hold a constant pressure (equalization of leakage), for pulsation damping and as an element of suspension. We can differ between 3 types of accumulators: 1. Diaphragm Accumulator, 2. Piston ccumulator 3. Metal Bellow Accumulator. At applications with high requirements to permeation the diaphragm accumulators are equipped with so called multi-layer diaphragms. During test series some of these accumulators failed because of big gas losses. At a first look, no external damage could be seen, so that the damage was assumed in the internal layer.

In this project a detailed X-ray based non-destructive testing (NDT) of accumulator membranes is carried out. This includes digital X-ray fluoroscopy using a Philips Computed Radiography (PCR) system as well as conventional and micro CT investigations.

Right: Single tomographic section of a membrane rupture, Left: the structure of the membrane rupture is revealed in the 3-D reconstruction

Publications

[ 2010 ] [ 2007 ] [ 2006 ] [ 2005 ] [ 2003 ]

2010 [ to top ]

  • Buzug, T. M.: Computed Tomography: From Photon Statistics to Modern Cone-Beam CT, Springer, Berlin, 2010, DOI: 10.1007/978-3-540-39408-2.
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2007 [ to top ]

  • J. Orschiedt, F. G. and Buzug, T. M.: Virtuelle Rekonstruktion und stereolithographisches Modell eines jungneolithischen Schädelfundes aus der Blätterhöhle in Hagen, Nordrhein-Westfalen, Archäologische Informationen, 30(1), 35-41, 2007, DOI: 10.11588/ai.2007.1.11152.
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2006 [ to top ]

  • Thomsen, D., Kurz, T., Kaesler, R. and Buzug, T. M.: X-Ray Based NDT of Accumulator Membranes, In: Aktuelle Methoden der Laser- und Medizinphysik: 2. Remagener Physiktage 2004, 244-246, 2006.
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  • Buzug, T. M. and Bongartz, J.: Forensische Gesichtsrekonstruktion. Ein Überblick über forensische, anthropologische und chirurgische Fragestellungen, Zeitschrift für Kriminalistik, 8-9(60), 502-505, 2006.
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  • Buzug, T. M.: Computed Tomography – A Tutorial for Anthropologists, In: Neanderthal 1856-2006, Verlag Philipp von Zabern, Mainz, 247-256, 2006, ISBN: 9783805336673.
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  • Buzug, T. M. and von Berg, A.: Micro-CT Bildgebung an Zähnen des frühen Mittelpaläolithikums aus der Kratermulde des Schweinskopfes bei Bassenheim, Kr. Mayen - Koblenz, Berichte zur Archäologie an Mittelrhein und Mosel, 11, 9-19, 2006.
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2005 [ to top ]

  • Thomsen, D., Kurz, T., Kaesler, R. and Buzug, T. M.: Radiographic Investigations of Micro Ruptures in Technical Diaphrams, In: Deutsche Gesellschaft für Zerstörungsfreie Prüfung - Berichtsband, 11-13, 2005.
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  • Buzug, T. M. and von Berg, A.: Micro-CT in der Archäologie – Untersuchung eines Neandertalerzahnes, In: Aktuelle Methoden der Laser- und Medizinphysik: 2. Remagener Physiktage 2004, 232-237, 2005.
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2003 [ to top ]

  • Thomsen, D., Klein, K., Oehler, M., Pfinninger, S., Buzug, T. M. and Reich, F.: Computertomographie in der Archäologie, In: Physikalische Methoden der Laser- und Medizintechnik, 156, 2003.
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