Damage-Sequences of Mountain Anchors
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C. Freitag
is a student of material science at the Montanuniversität Leoben. She received her BSc degree in material engineering from the University of applied sciences Osnabrück. Her main activities next to the studies are focused on failure analyses at the Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben.
is senior scientist for materials testing, failure analyses and radiation protection at the Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben, Austria and is Professor at a technical High Academy. His main activities are focused on fatigue of high strength as well as corrosion resistant steels and failure analyses.
Abstract
Strand anchors are a perennial problem [1]. In many instances such anchor systems have been in service for decades. Information regarding their construction, composition or manufacturer is often uncertain. In this article the damage to a number of broken strand anchors is investigated. Using relatively simple methods of investigation, it is shown that the main cause of failure encountered is hydrogen-induced stress corrosion cracking.
Kurzfassung
Litzenankerbrüche sind ein immer wiederkehrendes Phänomen [1]. In vielen Fällen sind solche Ankersysteme bereits mehrere Jahrzehnte im Einsatz. Informationen hinsichtlich Aufbau, Werkstoffe oder gar Hersteller sind meist Mangelware. Im vorliegenden Beitrag werden die Schäden an mehreren gebrochenen Litzenankern untersucht. Mit Hilfe einfacher Methoden kann gezeigt werden, dass die Hauptursache des Versagens auf wasserstoffinduzierte Spannungsrisskorrosion zurückzuführen ist.
About the authors
is a student of material science at the Montanuniversität Leoben. She received her BSc degree in material engineering from the University of applied sciences Osnabrück. Her main activities next to the studies are focused on failure analyses at the Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben.
is senior scientist for materials testing, failure analyses and radiation protection at the Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben, Austria and is Professor at a technical High Academy. His main activities are focused on fatigue of high strength as well as corrosion resistant steels and failure analyses.
References / Literatur
[1] Hunkeler, F.; Matt, P.; von Matt, U.; Werner, R.: Forschungsauftrag AGB2000/470, 2005, 49–55; 117–121; 134–136; 203; 276–290Suche in Google Scholar
[2] DSI, Broschüre – DYWIDAG Geotechnische Systeme, 2014, 04, 14–21Suche in Google Scholar
[3] Freitag, C.; Panzenböck, M.: Montanuniversität Leoben, Tagung Gefüge und Bruch, 2015, 11, 285Suche in Google Scholar
[4] Kunze, E.: Korrosion und Korrosionsschutz, WILEY-VCH, 2001, 470–505 DOI: 10.1002/978352762565910.1002/9783527625659Suche in Google Scholar
[5] Luithle, A.: Dissertation, Ruhr-Universität Bochum, 2013, 21–31; 75–99Suche in Google Scholar
© 2017 Carl Hanser Verlag GmbH & Co. KG
Artikel in diesem Heft
- Contents
- Editorial
- Editorial
- Failure analysis
- Damage-Sequences of Mountain Anchors
- Why Do Fasteners Fail? An Insight in to the Modes and Mechanisms of Fastener Failures
- Best of Schadensanalyse an Turbomaschinen – die Highlights aus 20 Jahren Laborpraxis
- Book Review
- Materials and Processes for Spacecraft and High Reliability Applications
- Top-ten downloads
- Top-Ten Article Downloads
- Top-ten downloads
- Picture of the Month
- People
- Interview with Prof. Dr. Andreas Neidel
- PM-NEWS
- PM-NEWS
- Meeting Dairy
- Meeting diary
Artikel in diesem Heft
- Contents
- Editorial
- Editorial
- Failure analysis
- Damage-Sequences of Mountain Anchors
- Why Do Fasteners Fail? An Insight in to the Modes and Mechanisms of Fastener Failures
- Best of Schadensanalyse an Turbomaschinen – die Highlights aus 20 Jahren Laborpraxis
- Book Review
- Materials and Processes for Spacecraft and High Reliability Applications
- Top-ten downloads
- Top-Ten Article Downloads
- Top-ten downloads
- Picture of the Month
- People
- Interview with Prof. Dr. Andreas Neidel
- PM-NEWS
- PM-NEWS
- Meeting Dairy
- Meeting diary
